JPS58150575A - Novel prostaglandin derivative - Google Patents

Novel prostaglandin derivative

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Publication number
JPS58150575A
JPS58150575A JP57032987A JP3298782A JPS58150575A JP S58150575 A JPS58150575 A JP S58150575A JP 57032987 A JP57032987 A JP 57032987A JP 3298782 A JP3298782 A JP 3298782A JP S58150575 A JPS58150575 A JP S58150575A
Authority
JP
Japan
Prior art keywords
compound
spectrum
solvent
formula
under reduced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57032987A
Other languages
Japanese (ja)
Inventor
Noboru Kubodera
久保寺 登
Hiroyuki Nagano
永野 洋幸
Michiro Takagi
道郎 高木
Isao Matsunaga
功 松永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugai Pharmaceutical Co Ltd
Original Assignee
Chugai Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chugai Pharmaceutical Co Ltd filed Critical Chugai Pharmaceutical Co Ltd
Priority to JP57032987A priority Critical patent/JPS58150575A/en
Publication of JPS58150575A publication Critical patent/JPS58150575A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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  • Thiazole And Isothizaole Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

NEW MATERIAL:The prostaglandin derivative of formulaI(X is O or S). EXAMPLE:(12S,15S)-(+)-S-Aza-10-thia-11-deoxyprostaglandin E1. USE:A bronchodilator. PROCESS:The compound of formulaIcan be prepared by (1) oxidizing the compound of formula II (R is lower alkyl), (2) subjecting the resultant compound of formula III to Wittig reaction with the compound of formula VI to obtain the compound of formula IV, (3) reducing the product to the compound of formula V, and (4) hydrolyzing the product. The compound of formula II is also new substance, and can be synthesized by (1) esterifying cysteine or serine, (2) reacting with phosgene in the presence of a base, (3) reducing the resultant thiazoline derivative, (4) protecting the hydroxyl group of the product, (5) N-alkylating the compound in the presence of a base, and (6) eliminating the protecting group of the hydroxyl group.

Description

【発明の詳細な説明】 本実5と幹式(1)で示されるプロスタグランジン佛導
体に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a prostaglandin conductor represented by the main formula (1).

IH (式中Xはot九は8を意味する) 本発明の一般式(1)で示されるプロスタグランジン誘
導体は新規化合物であり、例えば以下式示する方法によ
って製造される。
IH (In the formula, X means 8) The prostaglandin derivative represented by the general formula (1) of the present invention is a new compound, and is produced, for example, by the method shown below.

(式中Xは前記と同じものを意味し、Rは低級アルキル
基を意味する) 前記反応式において化合物(1)は新規化合物であり、
システィンまたはセリンより以下に示す方法によって合
成される。
(In the formula, X means the same as above, and R means a lower alkyl group) In the reaction formula, compound (1) is a new compound,
It is synthesized from cysteine or serine by the method shown below.

(方法A) (■リ                      
 (Vl+)CHs (式中XおよびRti前記と同じものを意味する)化合
物(v4)は常法に従い、例えば峻とアルコールにより
エステル化し化合物(■)が得られる0次いで(1)’
を炭酸水素ナトリウム、ピリジン等の塩基水素化ナトリ
ウム等の塩基の存在下N−アル中ル化し−に水酸基の保
映基を常法に従い除去することにより化合物(1)が得
られる。
(Method A) (■ Ri
(Vl+)CHs (in the formula, X and Rti have the same meanings as above) Compound (v4) is esterified with alcohol in a conventional manner, for example, to obtain compound (■).
Compound (1) is obtained by N-alcoholization in the presence of a base such as sodium hydrogen carbonate, pyridine, etc. and a base such as sodium hydride, and then removing the hydroxyl group in accordance with a conventional method.

(方法B) (X11) 方法Aにおけるエステル体(Vl) K先にアルコキシ
カルボニルヘキサナールを反応させ中間に生成するシッ
フ塩基体等を単離せずにそのまま還元することによりN
−アルキル瞳換体(罵)とした後、これに方法人と同様
にホスゲンとの反応により環化し次いで還元することに
より化合物(厘)が得られる。
( Method B ) (
- After forming the alkyl compound, the compound is cyclized by reaction with phosgene in the same manner as the method, followed by reduction to obtain the compound.

方法Aまたは方法Bにおいて出発物質としてはシスティ
ン、セリン!丸はその低級アルキルエステル体が用いら
れるが、出発物質として各々光学的に活性なシスティン
またはセリンを用いることくより、ホスゲンとの反応に
よ9得られるチアゾリジン類またはオギサゾリジン類は
いずれも光学活性体である。なお最終生成物である本発
明の化合物(1)となってもこの光学的性質はそのまま
保持されている。
In Method A or Method B, the starting materials are cysteine, serine! The lower alkyl esters of circles are used, but by using optically active cysteine or serine as starting materials, thiazolidines or oxazolidines obtained by reaction with phosgene are both optically active forms. It is. Note that even in the final product, compound (1) of the present invention, these optical properties are maintained as they are.

このようにして得られる本発明の化合物は気管支拡張作
用を有し医薬として有用である。
The compound of the present invention thus obtained has a bronchodilator effect and is useful as a medicine.

a)D−システィン塩rf1塩水和物4fをメタノール
100dl’ll解し水冷下塩化水素ガスを1o分間導
入後室温で一夜攪拌する。減圧下溶媒を留去して無色の
結晶性残渣3.911を得る。この結晶性残$3.91
1と炭酸水素ナトリウム6.3f、水45dおよびクロ
ロホルム3o−の混合物に、水冷攪拌下トルエン15m
に溶解し九ホスゲン′L52を少量ずつ加え水冷下20
分間攪拌する。残存するホスゲンt−診去しクロロホル
ム層を分離し飽和食塩水で洗浄後硫酸す) IJウムで
乾燥し、減圧下溶媒を留去して得られる微黄色油状物を
薄噛クロマトグラフィー(展開溶媒クロロホルム:メタ
ノール冒10:1)に付しメチル(8) −C+) −
2−オキソチアゾリジン−4−カルボ午シレート(■1
)を得る。
a) D-cysteine salt rf1 salt hydrate 4f was dissolved in 100 dl of methanol, hydrogen chloride gas was introduced for 10 minutes under water cooling, and the mixture was stirred overnight at room temperature. The solvent was distilled off under reduced pressure to obtain a colorless crystalline residue 3.911. This crystalline residue $3.91
1, 6.3 f of sodium hydrogen carbonate, 45 d of water, and 3 o of chloroform, 15 m of toluene was added under water-cooling and stirring.
Add nine phosgene'L52 little by little and cool for 20 minutes under water cooling.
Stir for a minute. The remaining phosgene was removed, the chloroform layer was separated, washed with saturated saline and sulfuric acid), dried over IJum, and the solvent was distilled off under reduced pressure. Methyl (8) -C+) - in chloroform:methanol (10:1)
2-oxothiazolidine-4-carboxylate (■1
).

■ 几スペクトル611−”: 3270 、174G
 。
■ 几spectrum 611-”: 3270, 174G
.

1680.121O NM几スペクトルJ : 166(2H,m) 、X7
1(3H。
1680.121O NM Spectrum J: 166 (2H, m), X7
1 (3H.

s、、) 、 4.51 (IH、dd 、J−7,,
2,5Hz> 、 7.05 (IH,s) マススペクトル”/、: 161(M”)、102((
)”j+49.8°(0=lOJtOH)b)メチル(
8) −(+) −2−オキソチアゾリジン−4−カル
ボキシレート(ms+)173ftエタノール50sd
に溶解し、水冷下水素化ホウ素ナトリウム0.77ft
−少量ずつ加え先後、水冷下に1時間攪拌する。10x
塩l!IIt加えた後減圧下溶媒を留去し、残渣を酢酸
エチルで抽出する。硫酸ナトリウムで乾燥後、減圧上溶
媒を留去して得られる油状物をシリカゲルカラムクロマ
、トゲラフイー(溶媒クロロホルム:エタノール−10
:1)に付し精製する。これを酢酸エチルより再結晶し
一点1015〜104.5℃の鍼色プリズム晶の(8)
−(+)−2−オキソ−4−ヒドロキシメチルチアゾリ
ジン(lXg)1.73ft得る。
s,, ), 4.51 (IH, dd, J-7,,
2,5Hz>, 7.05 (IH,s) Mass spectrum"/,: 161(M"), 102((
)”j+49.8°(0=lOJtOH)b) Methyl(
8) -(+) -2-oxothiazolidine-4-carboxylate (ms+) 173ft ethanol 50sd
0.77ft of sodium borohydride dissolved in water and cooled with water.
-Add little by little and stir for 1 hour while cooling with water. 10x
Salt! After adding IIt, the solvent was distilled off under reduced pressure, and the residue was extracted with ethyl acetate. After drying with sodium sulfate, the solvent was distilled off under reduced pressure and the resulting oil was subjected to silica gel column chroma, Togelafy (solvent chloroform: ethanol-10
:1) for purification. This was recrystallized from ethyl acetate to produce needle-colored prism crystals (8) with a temperature of 1015 to 104.5°C.
1.73 ft of -(+)-2-oxo-4-hydroxymethylthiazolidine (lXg) is obtained.

IRスペクトルts  、3250.164ON114
にスペクトルー:11〜4.1(51(、憔)、4.7
4(2H,謳) マx xペクトに一/、:133(M”)#102(a
) D+0.8@(0−LO、gtOH)c) (8)
 −(+) −2−オキノー4−ヒドロキシメチルチア
ゾリジン(Km) L42 t 、エチルビニールエー
テル5.1d、)リフ四口酢酸0.14 rおよびジメ
トキシエタン20df)鳴金物を室温で6時間攪拌後酢
酸エチルで抽出する。酢酸エチル−を相和炭酸水素ナト
リウム水、S和食塩水で順次洗浄し、硫酸ナトリウムで
乾燥後、減圧上溶媒を留去して無色油状物の0(a)1
18Fを得る。
IR spectrum ts, 3250.164ON114
Spectrum: 11-4.1 (51 (, 憔), 4.7
4 (2H, sung) Max
) D+0.8@(0-LO, gtOH)c) (8)
-(+) -2-Oquino 4-Hydroxymethylthiazolidine (Km) L42 t, ethyl vinyl ether 5.1d,) Riff Shitoko acetic acid 0.14r and dimethoxyethane 20df) Acetic acid after stirring the metal metal for 6 hours at room temperature. Extract with ethyl. Ethyl acetate was washed successively with aqueous sodium bicarbonate solution and S saline solution, dried over sodium sulfate, and the solvent was distilled off under reduced pressure to obtain a colorless oily substance (0(a)1).
Get 18F.

I  RXベクトルtxt 、3250.168ON 
M Rx ヘl ) ルa : 120 (3H−t 
) * l−3i(3Hsd) 、3.0〜3.9(5
H,m) 、4.03(2H,q) 、4.76(IH
,q)、a59(IH,s) dの懸濁液を窒素ガス気流中氷冷上滴下する。室温で1
時間攪拌後再び水冷し、エチル7−ヨードへブタノニー
)3.32Fのジメチルホルムアミド(lOIILl)
#液を加え、55℃で15時間攪拌する。50dの氷水
にあけ酢酸エチルで抽出する。
I RX vector txt, 3250.168ON
M Rx Hel) Lua: 120 (3H-t
) *l-3i(3Hsd), 3.0~3.9(5
H, m), 4.03 (2H, q), 4.76 (IH
, q), a59(IH, s) A suspension of d was added dropwise on ice-cooling in a nitrogen gas stream. 1 at room temperature
After stirring for an hour, cool with water again, and dimethylformamide (ethyl 7-iodobutanony) 3.32F (lOIILl).
Add # solution and stir at 55°C for 15 hours. Pour into 50 d of ice water and extract with ethyl acetate.

酢酸エチル層を飽和食塩水で洗浄、硫酸ナトリクム乾4
後、減FOE下溶媒を留去して得られる黄色油状物をシ
リカゲルカラムクロマトグラフィー(溶媒ベンゼン:酢
酸エチル−5:1)に付し精製し微黄色油状物の化合物
Ofim)3.57fを得る。
Wash the ethyl acetate layer with saturated saline, dry with sodium sulfate 4
After that, the yellow oil obtained by distilling off the solvent under reduced FOE was purified by silica gel column chromatography (solvent: benzene: ethyl acetate - 5:1) to obtain compound Ofim) 3.57f as a pale yellow oil. .

I  RXペクトkm 、1730.168ONMRス
ペクトルー: L21(3H,t)、1.26(3H。
I RX pect km, 1730.168 ONMR spectrum: L21 (3H,t), 1.26 (3H.

t) 、 L33(3H,d) 、L4(8H,br)
 、2..30(2H,t)、19〜19(9)(、m
) 、415(2H,q)。
t), L33 (3H, d), L4 (8H, br)
, 2. .. 30 (2H, t), 19-19 (9) (, m
), 415 (2H, q).

4.76(IH,Q) C)化合物OIN暑)&57fをp−トルエンスルホン
酸350dおよびエタノール50dの混合物を室温で1
時間攪拌後、減圧上溶媒を留去して得られる残渣を酢酸
エチルに#!解し、飽和炭酸水素ナトリウム水、飽和食
塩水で順次洗浄し、硫酸ナトリウムで乾燥後、減圧上溶
媒を留去して微黄色油状物のエチル(8) −(+) 
−7−(4−ヒドロキシメチル−2−オキソ腎アゾリジ
ン)ヘプタノエート (厘a)2..671F を得る
4.76 (IH,Q) C) Compound OIN) &57f was dissolved in a mixture of 350 d of p-toluenesulfonic acid and 50 d of ethanol at room temperature.
After stirring for an hour, the solvent was distilled off under reduced pressure and the resulting residue was dissolved in ethyl acetate. Dissolved, washed sequentially with saturated aqueous sodium bicarbonate and saturated brine, dried over sodium sulfate, and distilled off the solvent under reduced pressure to obtain ethyl (8)-(+) as a pale yellow oil.
-7-(4-Hydroxymethyl-2-oxorenazolidine)heptanoate (厘a)2. .. Obtain 671F.

■ Rスペクトhas a 3450e1730゜16
8 G、 、 165 O NMRスペクトルδ: 1−26 (3H、t ) 、
 1.4(8H、br) 、130(2H,t ) 、
2.’J−19(8H,s)。
■ R spectrum has a 3450e1730°16
8G, , 165O NMR spectrum δ: 1-26 (3H,t),
1.4 (8H, br), 130 (2H, t),
2. 'J-19 (8H, s).

4.14(2H,q) マススペクトル”/’:289(M+)、212(El
 )”、7+ 42.5” (0−10、i?tOH)
f) 化合物(Ia ) 1489 、ジシクロへキシ
ルカルボジイミド5.31 ? 、ピリジン0.7t/
、)リフルオロ酢酸α33MI、ジメチルスル7オキシ
ド13りおよびベンゼン13rxlの混合物をアルゴン
ガス気流下室温で13時間攪拌する。不@#Bt−F別
後、P液を飽和食塩水で洗浄する。@IIE酸す) I
)ラムで乾燥後、減圧上溶媒を留去して得られる残渣を
シリカゲルカラムクロマトグラフィー(溶媒ベンゼン:
酢酸エチル−4=1)に付しN製し微黄色油状物のエチ
ル(8) −(+) −7−(4−ホルミル−2−オキ
ソ−3−チアゾリジン)ヘプタノエート(膳a)131
1Fを得る。
4.14(2H,q) Mass spectrum”/’: 289(M+), 212(El
)", 7+ 42.5" (0-10, i?tOH)
f) Compound (Ia) 1489, dicyclohexylcarbodiimide 5.31? , pyridine 0.7t/
,) A mixture of 33 MI of rifluoroacetic acid, 13 of dimethyl sulfoxide, and 13 rxl of benzene is stirred at room temperature under a stream of argon gas for 13 hours. After separating the non-@#Bt-F, the P solution is washed with saturated saline. @IIE acidsu) I
) After drying with a ram, the solvent was distilled off under reduced pressure and the resulting residue was subjected to silica gel column chromatography (solvent: benzene:
Ethyl (8) -(+) -7-(4-formyl-2-oxo-3-thiazolidine)heptanoate (Table a) 131
Obtain 1F.

I  &xベク) ルe;i1:1730.1675N
MRスペクトルー: 1.26 (3H、t ) 、 
1.4(8H。
I&xbec) le;i1:1730.1675N
MR spectrum: 1.26 (3H,t),
1.4 (8H.

br) 、2L31(2H,t ) 、3.0〜19(
4H,s) 。
br), 2L31(2H,t), 3.0-19(
4H,s).

4.15(2H,q)、4.80(IH,br)、9.
78(IH。
4.15 (2H, q), 4.80 (IH, br), 9.
78 (IH.

d、Jsw2Hz) マススペクトル”/ : 287(M+)、 212〔
α〕。+264” (0−1,OJtOH)厘)60%
水素化ナトリウム1951!lftテトラヒドロフラン
50−に懸濁し、窒素ガス気流下、水冷−下、ジメチル
(2−オキソヘプチル)フォス7オネートL 08 f
 1にテトラヒドロ7ラン20m1に溶解したものt−
滴下後、室温で1時間、〆に50℃で10分間攪拌する
。再び氷冷し化合物(■a)1゜1eftテトラヒドロ
フラン20dに溶解したもの’t−鳩下する。室温で1
時間攪拌後減圧下*媒全留去する。残渣をジクロルメタ
ンで抽出し、飽和食塩水で洗浄する。硫酸す) IJウ
ムで乾燥後減圧上溶媒を留去して得られる油状物音シリ
カゲルカラムクロマトグラフィー(溶媒ベンゼン:酢酸
エチル−10:1)K付し微責色油状物のエチル(8)
−(+)−7−(4−(3−オキソ−トランス−1−オ
クテニル)−2−オキノー3−チアゾリジン〕ヘプタノ
ニー) (1/a) 910wgを得る。
d, Jsw2Hz) Mass spectrum”/: 287 (M+), 212 [
α〕. +264” (0-1, OJtOH) 60%
Sodium hydride 1951! dimethyl(2-oxoheptyl)phos-7onate L 08 f suspended in 50% of tetrahydrofuran under a nitrogen gas stream and water-cooled.
1 dissolved in 20ml of tetrahydro7ran t-
After dropping, the mixture was stirred at room temperature for 1 hour, and finally at 50°C for 10 minutes. The mixture was cooled again on ice, and a solution of compound (■a) dissolved in 1°1ft of tetrahydrofuran (20d) was poured down. 1 at room temperature
After stirring for an hour, the medium was completely distilled off under reduced pressure. The residue is extracted with dichloromethane and washed with saturated brine. Sulfuric acid) Oil obtained by distilling off the solvent under reduced pressure after drying with IJum Silica gel column chromatography (solvent benzene: ethyl acetate - 10:1) K slightly colored oil ethyl (8)
-(+)-7-(4-(3-oxo-trans-1-octenyl)-2-okino-3-thiazolidine]heptanony) (1/a) 910 wg is obtained.

IRスペクトルam−” : 1730 、168 O
N M RスペクトルJ :0.89(3H,t)、1
.24(3H。
IR spectrum am-”: 1730, 168 O
NMR spectrum J: 0.89 (3H, t), 1
.. 24 (3H.

t)、1−4(141(、br)、129(21,t)
、2.59(2H,t)、3.05(21(、s)、3
.50(2H,t)。
t), 1-4(141(,br), 129(21,t)
, 2.59 (2H, t), 3.05 (21 (, s), 3
.. 50 (2H, t).

4.13(21(、Q)、4.35(li(、嘱)、会
合舎場寺村〒6.25( IH,d 、J=16[(g)、6.76(IH,dd
、J−7,16Hz) マススペクトル19/:383(M+)、238〔α〕
。+55.2@(0−LO、gtOH)h)化合物(N
a)695Ilvのエタノール25d浴液に氷冷下水素
化ホウ素ナトリウム83119を加え氷冷下に20分間
攪拌する。10%塩酸を加えた後減圧下爵媒を留去して
得られる残F!!tを酢酸エチルで抽出し、嘲和食塩水
で洗浄し、億噴す) +7ウムで乾燥後、減圧上溶媒を
留去して得られる油状物をシリカゲル金剛いたプレバラ
テブTLO(薄層クロマトグラフィー)に付しく溶媒ベ
ンゼン:酢酸エチル−3: 1 )より極性の強い化合
物(Va−1)295岬と極性の弱い化合物(v+++
 −1) 290 R91に得た。
4.13 (21 (, Q), 4.35 (li (, 嘱), Kaishadera Village 〒6.25 (IH, d, J=16 [(g), 6.76 (IH, dd)
, J-7, 16Hz) Mass spectrum 19/: 383 (M+), 238 [α]
. +55.2@(0-LO,gtOH)h) Compound (N
a) Add sodium borohydride 83119 to a 695 Ilv ethanol 25d bath solution under ice cooling and stir for 20 minutes under ice cooling. Residue F obtained by adding 10% hydrochloric acid and distilling off the solvent under reduced pressure! ! After drying over +7 μm, the solvent was distilled off under reduced pressure, and the resulting oil was subjected to silica gel pre-validation TLO (thin layer chromatography). Additionally, a more polar compound (Va-1) than the solvent benzene:ethyl acetate-3:1) and a less polar compound (v+++
-1) Obtained at 290 R91.

・化合物(Va−1) IFLスペクトルtym 、3450.1730.16
7ONMRスペクトルー: 0.88(3H,t ) 
、 1.23(30゜t )、 1.4(16H,br
) 、2.27(2H,t) 、2.35(11−1,
i) 、176〜156(5H,惰) 、410(2H
・Compound (Va-1) IFL spectrum tym, 3450.1730.16
7ONMR spectrum: 0.88 (3H,t)
, 1.23 (30°t), 1.4 (16H, br
) , 2.27 (2H, t) , 2.35 (11-1,
i), 176-156 (5H, inertia), 410 (2H
.

q ) 、4.25(ll−1,br)、5.38〜5
.82(2H,喝)マススペクトルシ:385(M”)
、212〔α〕ツ+45.3”(0閣LO,NtOH)
・化合物(Vm−1) I  RXペクトktym 、3450.1730.1
66ONMRスペクトルJ : 0.9G (3H、t
 ) 、 1.25(3)L@) 、1.4(16H,
br)、2.30(2H,t)、2.45(IH−→、
 2.80=160 (5H、s) 、 4.12 (
2)Lq)。
q), 4.25(ll-1,br), 5.38~5
.. 82 (2H, alcohol) Mass spectrum: 385 (M”)
, 212 [α] + 45.3” (0 cabinet LO, NtOH)
・Compound (Vm-1) I RX pect ktym, 3450.1730.1
66ONMR spectrum J: 0.9G (3H, t
), 1.25(3)L@), 1.4(16H,
br), 2.30 (2H, t), 2.45 (IH-→,
2.80=160 (5H, s), 4.12 (
2) Lq).

430(It(、br) 、5.41−5.86(2H
,寓)マx :x ヘ/ ) ルm/: 385 (M
”) + 367〔α) 、 +212’(0−LO,
R10H)1)化合物(V!l−1) 23 g ’1
14?(r) 工fi /−ル4.5−溶液に氷冷下2
N水酸化ナトリウム水α46dt−加えた後、室温で3
,5時間攪拌する。減圧上溶媒を留去して得られる残渣
を水に溶解し、10%塩苧で喰性とした後酢酸エチルで
抽出する。咋嘴エチル層を峨和食塩水で洗浄、硫酸ナト
リウムで乾燥後、減圧上溶媒を留去すると結晶性(12
,s、 i 58)−(+) −8−アザ−10−チア
−11−デオキシグロスタグランジンgl(I鳳−1)
 218〜t−得る。
430(It(,br), 5.41-5.86(2H
, fable) ma x : x he/ ) le m/: 385 (M
”) + 367 [α), + 212' (0-LO,
R10H) 1) Compound (V!l-1) 23 g '1
14? (r) engineering fi/-le 4.5- solution under ice cooling 2
After adding N sodium hydroxide water α46dt-, at room temperature
, stir for 5 hours. The residue obtained by distilling off the solvent under reduced pressure is dissolved in water, made edible with 10% shiochi, and then extracted with ethyl acetate. The ethyl beak layer was washed with Japanese brine, dried over sodium sulfate, and the solvent was distilled off under reduced pressure to obtain crystalline (12
, s, i 58) -(+) -8-aza-10-thia-11-deoxyglostaglandin gl (Iho-1)
218~t-obtain.

融点93〜94℃(酢酸エチル−鴬−ヘキサンより再結
晶)。
Melting point: 93-94°C (recrystallized from ethyl acetate-hexane).

IRスペクトルI21+ 、3600〜2400 。IR spectrum I21+, 3600-2400.

1730.164O NM几スペクトルJ : Q、89 (3H、t L 
1.4(16H。
1730.164O NM 几spectrum J: Q, 89 (3H, t L
1.4 (16H.

br) 、2.32(2H,t) 、172〜3.62
(4H,s)。
br), 2.32(2H,t), 172-3.62
(4H, s).

4.04〜4.36(2H,s) 、5.64〜5.8
9(2H,犠)。
4.04-4.36 (2H, s), 5.64-5.8
9 (2H, sacrifice).

6.09(2H,s) マススペクトル”/:357(F/)、86[a] D
+4&6” (0−1,0JtO)f)j)化合物(V
a−2) 176M9 、2 N水酸化ナトリウム水0
.35dおよびエタノール3.54を用い前記巡)の場
合と同様に処理し結晶性の(128,15R)−(+)
−8−アf −10−チア−11−デオキシプロスタグ
ランジンIl(1g−1) 160〜を得る。
6.09 (2H, s) Mass spectrum”/:357 (F/), 86 [a] D
+4&6” (0-1,0JtO)f)j) Compound (V
a-2) 176M9, 2N sodium hydroxide water 0
.. Crystalline (128,15R)-(+)
-8-af-10-thia-11-deoxyprostaglandin Il (1 g-1) 160~ is obtained.

融点70〜71℃(酢噴エチルー襲−ヘキサンより再結
晶) IRスペクトルi”:3600〜2400゜1730.
164O NMRスペクトルー: o、90 (3H、t )、 
1.4 (16H。
Melting point: 70-71°C (recrystallized from vinegar, ethyl-hexane) IR spectrum: 3600-2400°1730.
164O NMR spectrum: o, 90 (3H,t),
1.4 (16H.

br)、!33(21(、t) 、 2.70〜3.6
0(4H,s) 。
br),! 33(21(,t), 2.70~3.6
0(4H,s).

4.04〜4.38(2H、s) 、5.65〜5.9
0(2H,鉛。
4.04-4.38 (2H, s), 5.65-5.9
0 (2H, lead.

5.98(2H,s) マススペクトルシ:357(M+)、8g喀 〔α)”、’  4215@(0鱒LO,引OH)実施
M 2゜ 発 L−システィンを出I物質とし以下実施例1と同様に処
理し、(12115B)−(−)−8−アザ−10−+
7−11−7’オキシブ四スタグランジ7B*(Ib−
s)と(121158)−(−)−8−アザ−10−チ
ア−11−デオキシプロスタグランジン81 (1b−
z )を得る。
5.98 (2H, s) Mass spectrum: 357 (M+), 8g [α)'', ' 4215 @ (0 trout LO, pull OH) Conducted M 2゜L-cysteine was used as the output I substance and the following was carried out Treated in the same manner as in Example 1, (12115B)-(-)-8-aza-10-+
7-11-7' Oxybu tetrastagrange 7B*(Ib-
s) and (121158)-(-)-8-aza-10-thia-11-deoxyprostaglandin 81 (1b-
z).

ンより再結晶) IfLスペクトルi”: 360 G〜240G 。recrystallized from IfL spectrum i'': 360G to 240G.

1730.164O NMRスペクトルa : 0.90(3H,t) 、1
.4(16H。
1730.164O NMR spectrum a: 0.90(3H,t), 1
.. 4 (16H.

br) 、134(2H,t) 、2.68〜3.70
(4H,s)。
br), 134(2H,t), 2.68-3.70
(4H, s).

4.05〜4.37 (2H、wa) 、 5.67〜
5.92 (2H,蟻)。
4.05~4.37 (2H, wa), 5.67~
5.92 (2H, Ant).

6.03(21−1,烏) マススペクトルシ:357(M+)、212〔α )”
7−4a5@ (0−LO,gtOH)01′I 融点72〜73℃(酢酸エチル−爲−ヘキサンより再結
晶) IRスペクトル傷、3600〜2400゜1730.1
64O NMRスペクトルJ:α90(31(、t) 、1.4
(16H。
6.03 (21-1, Crow) Mass spectrum: 357 (M+), 212 [α)”
7-4a5@(0-LO,gtOH)01'I Melting point 72-73℃ (recrystallized from ethyl acetate-di-hexane) IR spectrum scratches, 3600-2400゜1730.1
64O NMR spectrum J: α90(31(,t), 1.4
(16H.

br ) 、2.35(2H,t) 、!72〜3.6
2(4H,s)。
br), 2.35(2H,t),! 72-3.6
2 (4H, s).

4.07〜4.40C2H,嘱)、5.66〜5.91
(21(、嘱)。
4.07-4.40C2H, 5.66-5.91
(21(,嘱).

5.74(2)(、s) マススペクトル%:357(M”)、86〔α) ”、
’ −213@(0=LO、gtOH)実施例1 (χ1llc)           (uc)a)6
−ニトキシカルポニルヘキサナール1B、4f。
5.74(2)(,s) Mass spectrum %: 357(M”), 86[α)”,
' -213@(0=LO, gtOH) Example 1 (χ1llc) (uc)a)6
-Nitoxycarponylhexanal 1B, 4f.

DL−セリンエチルエステル填酸塩1&14およヒドリ
エチルアミン11dt−360−のエタノールに溶解し
室温で30分間攪拌後1096パラジウムー炭素29f
加え接触還元する。(25時間で1.941の水素ガス
を消費)不溶物eF別し減圧上溶媒を留去して得られる
残渣をジクロルメタンに@解し飽和炭酸水素ナトリウム
水、吻和食塩水で順次洗浄する。硫酸ナトリウムで乾燥
後、減圧上溶媒を留去して得られる油状物をシリカゲル
カラムクロマトグラフィー(溶媒クロロホルム:エタノ
ール−10:1)に付し微黄色油状物のエチルN−(6
−ニトキシカルボニルヘキシル)セリネ−)  ()I
c   )  1 5.6  IP? 得、シー。
DL-serine ethyl ester filtrate 1&14 and hydrethylamine 11dt-360- were dissolved in ethanol and stirred at room temperature for 30 minutes, followed by 1096 palladium-carbon 29f.
In addition, contact reduction occurs. (Consuming 1.941 hydrogen gas in 25 hours) Insoluble matter eF was separated, the solvent was distilled off under reduced pressure, and the resulting residue was dissolved in dichloromethane and washed successively with saturated aqueous sodium bicarbonate and saline solution. After drying over sodium sulfate, the solvent was distilled off under reduced pressure, and the resulting oil was subjected to silica gel column chromatography (solvent: chloroform:ethanol-10:1) to obtain ethyl N-(6
-nitoxycarbonylhexyl)seline-) ()I
c) 1 5.6 IP? Good, see.

■ 几スペクトルffl’:3400,1735.11
9ONMBスペクトルIt : L24(3H,t)、
 1.28(3H。
■ 几spectrum ffl': 3400, 1735.11
9ONMB spectrum It: L24(3H,t),
1.28 (3H.

t ) 、 1.4(8H,br)、Z29(2H,t
 ) 、2.60(2H,br) 、169(2H,s
) 、121〜3.49(IH。
t), 1.4 (8H, br), Z29 (2H, t
) , 2.60 (2H, br) , 169 (2H, s
), 121-3.49 (IH.

s) 、160−3.82(2H,m) 、414(2
H,q) 。
s), 160-3.82 (2H, m), 414 (2
H,q).

421(2)1.4) マススペクトルー:29G(M+1)、288(M−1
)。
421 (2) 1.4) Mass spectrum: 29G (M+1), 288 (M-1
).

216 b)化合物□Ic) 11.56 f 、ピリジン6、
329を120xgのトルエンに##L、水冷下ホスゲ
ン4゜5tを40−のトルエンに溶解したものを滴下す
る。水冷下で30分間攪拌後不溶物を戸別し、飽和食塩
水で洗浄し硫酸ナトリウムで乾燥する。減圧上溶媒全留
去して得られる油状物をシリカゲルカラムクロマトグラ
フィー(溶媒ベンゼン:酢酸エチル−4=1)に付し微
黄色油状物のエチル7−(4−エトキシカルボニル−2
−オキソ−3−オキサゾリジン)ヘプタノエート001
1c) Q、 12 fを得る。
216 b) Compound □Ic) 11.56 f, pyridine 6,
329 was added dropwise to 120 x g of toluene, and a solution of 4°5 t of phosgene dissolved in 40-g of toluene was added dropwise under water cooling. After stirring for 30 minutes under water cooling, insoluble matter is separated, washed with saturated saline, and dried over sodium sulfate. The oil obtained by evaporating all the solvent under reduced pressure was subjected to silica gel column chromatography (solvent: benzene: ethyl acetate - 4 = 1) to give a pale yellow oil of ethyl 7-(4-ethoxycarbonyl-2).
-oxo-3-oxazolidine)heptanoate 001
1c) Obtain Q, 12 f.

■ 凡スペクトルear  、 1760.1735.
1205fMRXベクトル1t24(3H,t)、t3
1(3H,t ) 、1.4(8H,br) 、2.3
0(2H,t ) 。
■ Ordinary spectrum ear, 1760.1735.
1205fMRX vector 1t24 (3H, t), t3
1(3H,t), 1.4(8H,br), 2.3
0(2H,t).

3.30(2H,m) 、4.15(2H,q) 、4
.28(2H。
3.30 (2H, m), 4.15 (2H, q), 4
.. 28 (2H.

q) 、440(3H,br) vxxベク)ル”/:315(M”)、196C)化合
物(Xllc) 8.58 ft 250ydのエタノ
ールに尋解し水冷下水素化ホウ素ナトリウム1.24 
Fを少量ずつ加え水冷下で1.5時間攪拌後減圧下溶媒
全留去する。残渣に少量の水を加え酢酸エチルで抽出し
、飽和食塩水で洗浄し、硫酸ナトリウムで乾燥する。減
圧上溶媒を留去すると微黄色油状物のエチル−7−(4
−ヒドロキシメチル−2−オキノー3−オキサゾリジン
)ヘプタノエート(jc)7.12ft−得る。
q), 440 (3H, br) vxx Bec)le"/:315 (M"), 196C) Compound (Xllc) 8.58 ft Dissolved in 250 yards of ethanol and cooled with water in sodium borohydride 1.24
F was added little by little, and the mixture was stirred for 1.5 hours under water cooling, and then the solvent was completely distilled off under reduced pressure. Add a small amount of water to the residue, extract with ethyl acetate, wash with saturated brine, and dry over sodium sulfate. When the solvent was distilled off under reduced pressure, a pale yellow oily substance, ethyl-7-(4
-Hydroxymethyl-2-oquino-3-oxazolidine)heptanoate (jc) 7.12 ft- is obtained.

I 几スペクトルcm  * 543o、t7so。I Spectrum cm * 543o, t7so.

1730.1260.119O NMI(スペクトルJ : 1.25(31−1,t 
) 、 1.4(8)(。
1730.1260.119O NMI (spectrum J: 1.25 (31-1, t
), 1.4(8)(.

br)  、 2.30(2H,電 )  =3.20
(2H,s)、3.55(IH,s) 、 3.63(
2H,br) 、 3.95(IH,s)。
br), 2.30 (2H, electric) = 3.20
(2H,s), 3.55(IH,s), 3.63(
2H,br), 3.95(IH,s).

4.13(2H,q) 、4.31(2H,s)マスス
ペクトルIy:273(M’)、196d) 化合物(
Ic ) 5.46 t 、ジシクロへキシルカルボジ
イミド12.38f、ピリジン1.62m/、)リフル
オ0酢1110.77M1.ジメチルスルフオキシド3
0dおよびベンゼン30dの混合物をアルゴンガス気流
下室温で14時間攪拌する。不溶物全戸別後水洗し、硫
酸ナトリウムで乾燥する。減圧上溶媒を留去して得られ
る残渣をシリカゲルカラムクロマトグラフィー(#媒ベ
ンゼン:酢酸エチルー1:l)に付し無色油状物のエチ
ル7−(4−ホルミル−2−オキソ−3−オキサゾリジ
ン)へブタノエート(璽c)40fを得る。
4.13(2H,q), 4.31(2H,s) mass spectrum Iy: 273(M'), 196d) Compound (
Ic) 5.46 t, dicyclohexylcarbodiimide 12.38f, pyridine 1.62m/,) refluoro vinegar 1110.77M1. dimethyl sulfoxide 3
A mixture of 0d and benzene 30d is stirred at room temperature under a stream of argon gas for 14 hours. After removing all insoluble matter, wash with water and dry with sodium sulfate. The residue obtained by evaporating the solvent under reduced pressure was subjected to silica gel column chromatography (solvent benzene:ethyl acetate 1:l) to obtain ethyl 7-(4-formyl-2-oxo-3-oxazolidine) as a colorless oil. Hebutanoate (Seal c) 40f is obtained.

IRスペクトルtxi  、1750.173ONMI
’Lスペクトルδ: 1.25(3H,t)、1.4(
8)(。
IR spectrum txi, 1750.173ONMI
'L spectrum δ: 1.25 (3H, t), 1.4 (
8)(.

brLλ30(2H,t)、3.25(2H,br)、
4.14(2H= q ) * 4.30 (3H−b
r) −9,75(IH,d 1J−2Hz) −qxxべp トルm/:271(M+)1196e)
60%水素化ナトリウム1.07 f ifテトラヒド
ロ7ラン200s+7に懸濁し、襟素ガス気流中、氷冷
下ジメチルー2−オキソヘプチル7オス7オネート5.
95f’150mのテトラヒドロフランに溶解したもの
を滴下し、室温で1時間、−に50℃で15分間撹拌す
る。再び氷冷し化合物(lic)3゜639′f−50
+E/のテトラヒドロフランに溶解したものを滴下する
。室温で1時間攪拌後減圧下嬉媒を留去する。残渣をジ
クロルメタンに溶解し、飽和食塩水で洗浄し、硫酸す)
 IJウムで乾燥後城王ルー9 : 1 )に付し微黄
色油状物のエチル7−〔4−(3−オキソ−トランス−
1−オクテニル)−2−オキソ−3−オキサゾリジン〕
ヘプタノニー)(Me)1.67金得る。
brLλ30 (2H, t), 3.25 (2H, br),
4.14 (2H=q) * 4.30 (3H-b
r) -9,75 (IH, d 1J-2Hz) -qxxvep Tor m/:271 (M+) 1196e)
Suspended in 60% sodium hydride 1.07 f if tetrahydro 7 run 200s+7 and dimethyl-2-oxoheptyl 7 male 7 onate under ice cooling in a stream of chlorophyll gas.
95f'150m dissolved in tetrahydrofuran was added dropwise and stirred at room temperature for 1 hour and at -50°C for 15 minutes. Cool again on ice and compound (LIC) 3°639'f-50
+E/ dissolved in tetrahydrofuran is added dropwise. After stirring at room temperature for 1 hour, the reagent was distilled off under reduced pressure. Dissolve the residue in dichloromethane, wash with saturated saline, and dilute with sulfuric acid)
After drying with IJum, it was subjected to Jooh Roux 9:1) to give a slightly yellow oily substance, ethyl 7-[4-(3-oxo-trans-
1-octenyl)-2-oxo-3-oxazolidine]
(Me) 1.67 gold obtained.

IRスペクトル画 、!750.1735゜1680.
1635 NMルスベクトルδ: 0.90(3H,! ) 、 
1.24(3H。
IR spectrum image! 750.1735°1680.
1635 NM Lux vector δ: 0.90 (3H,!),
1.24 (3H.

t)、1.4(14H,br) 、2.29(2H,t
)、λ60(21−I、t)、3.20(2H,犠)、
4.12(2H,q)。
t), 1.4 (14H, br), 2.29 (2H, t
), λ60 (21-I, t), 3.20 (2H, sacrifice),
4.12 (2H, q).

4.40(2H,喚)、4.00(IH,+a)マX 
X ヘク) k”/ : 367(M”) 、222f
)化合物(II/c) 45211p’i 20ydの
エタノールに溶解し一15℃で水素化ホウ素ナトリウム
56〜を加え同温度で40分間攪拌後lO%塩#!を加
える。減圧上溶媒を留去して得られる油状物をプレバラ
テプTLO(シリカゲル、溶媒クロロホルム:エタノー
ルー30:1)に付し無色油状物の化金物(Vc−1)
 150M11および無色油状物の化合物。
4.40 (2H, call), 4.00 (IH, +a) Ma
X Heku) k”/: 367 (M”), 222f
) Compound (II/c) 45211 p'i Dissolved in 20 yd of ethanol, added 56~ of sodium borohydride at -15°C, stirred at the same temperature for 40 minutes, and then dissolved in 10% salt #! Add. The oily substance obtained by distilling off the solvent under reduced pressure was subjected to Prevalatep TLO (silica gel, solvent chloroform:ethanol - 30:1) to obtain a colorless oily compound (Vc-1).
150M11 and the compound as a colorless oil.

(Vc−1)17359を得る。(Vc-1)17359 is obtained.

・化合物(Vc−s) ■ 几スペクトルtx  、3450.1750.17
35NMRスペクトルー: 0.90 (3H,t )
 、 1.25 (3H。
・Compound (Vc-s) ■ 几spectrum tx, 3450.1750.17
35NMR spectrum: 0.90 (3H,t)
, 1.25 (3H.

t) 、1.4(16H,br)、 2.29(IH,
s) 、2JO(2H,t) 、3.14(2H,s)
 、3.96(2H,s) 。
t), 1.4 (16H, br), 2.29 (IH,
s), 2JO(2H,t), 3.14(2H,s)
, 3.96 (2H, s).

4.13(2H,q) 、4.37(2H,鴬)、5.
61〜6.08(2H、m ) マススペクトル”/:370(M+1)、172会化合
物(Vc−2) IRスペクトルex 、3450,1750.1735
N M R:xへl ) ルJ:0.90(3H,t)
、1.25(3H。
4.13 (2H, q), 4.37 (2H, Tsumugi), 5.
61-6.08 (2H, m) Mass spectrum"/: 370 (M+1), 172 compound (Vc-2) IR spectrum ex, 3450, 1750.1735
N M R: x to l ) Le J: 0.90 (3H, t)
, 1.25 (3H.

t ) 、1.4(16H,br)、2.30(2H,
t) 、2.62(IH,a) 、114(2H,*)
、3.96(2H,s)。
t), 1.4 (16H, br), 2.30 (2H,
t) , 2.62 (IH, a) , 114 (2H, *)
, 3.96 (2H, s).

4.13 (2H,q ) 、 4.37 (2H、s
) 、 5.61〜6.08(2H1犠) ? X Xベクトルシ:370(M+1)、196厘)
化合物(Vc−1) 14 G’lft’ 3MIのエ
タノールに尋解し水冷下2N水酸化ナトリウム水0.3
−を加え、室温で2時間攪拌後板圧下溶媒を蜜去する。
4.13 (2H, q), 4.37 (2H, s
), 5.61-6.08 (2H1 sacrifice)? X
Compound (Vc-1) 14 G'lft' Dissolved in 3 MI of ethanol and diluted with 0.3 2N sodium hydroxide solution under water cooling.
- was added, and after stirring at room temperature for 2 hours, the solvent was removed under plate pressure.

残渣′frlO%塩酸で酸性となし酢酸エチルで抽出す
る。飽和食塩水で洗浄し、硫酸す) IJウムで乾燥後
減圧下溶媒金留去して結晶性残渣128I9を得る。こ
れを酢酸エチル−外−へキサンより再結晶し融点53〜
54℃の化合物(le−1)の無色針状晶を得る。
The residue was acidified with 0% hydrochloric acid and extracted with ethyl acetate. After washing with saturated brine and drying over sulfuric acid, the solvent was distilled off under reduced pressure to obtain a crystalline residue 128I9. This was recrystallized from ethyl acetate exohexane with a melting point of 53~
Colorless needle-like crystals of compound (le-1) are obtained at 54°C.

I  RXベクトルffi  63600〜2500 
I RX vector ffi 63600~2500
.

1750.173O NMRスペクトルδ:0.89(3H,t)、1.4(
16H,br)、 2.33(2H,t ) 、 3.
13(2H,s) 。
1750.173O NMR spectrum δ: 0.89 (3H, t), 1.4 (
16H,br), 2.33(2H,t), 3.
13 (2H, s).

3.82〜4.56(4H,+%)、5.60〜6.0
8(2H,s)。
3.82-4.56 (4H, +%), 5.60-6.0
8 (2H, s).

6.32 (2H,s ) マススペクトルシ:342(M+1)、252h)化合
物(Vc−z)170a9tエタノールλ7−および2
N水酸化す) IJウム水0.37 ml f用い前記
実施例3g)と同様に処理し融点56〜58℃の化合物
(Ic−1) 1501111?’fr得る。
6.32 (2H,s) Mass spectrum: 342 (M+1), 252h) Compound (Vc-z) 170a9t Ethanol λ7- and 2
Compound (Ic-1) 1501111 with a melting point of 56-58°C was treated in the same manner as in Example 3g) using 0.37 ml of IJum water (N hydroxide). Get 'fr.

I  RXベクトルam  、3600〜2500 。I RX vector am, 3600-2500.

1750.173O NMRスペクトルδ:0.90(3H,t)、1.4(
16H。
1750.173O NMR spectrum δ: 0.90 (3H, t), 1.4 (
16H.

br)、λ33(2H,t )、3.13(2H,m)
、3.82〜4.56(4H,嘱)、5.60〜6−0
8(2)1.惧)。
br), λ33(2H,t), 3.13(2H,m)
, 3.82-4.56 (4H, 嘱), 5.60-6-0
8(2)1. (worry).

5.98(2H,s) マススペクトルffl/: 342 (M+1) 、 
196出願人  中外製薬株式会社
5.98 (2H, s) Mass spectrum ffl/: 342 (M+1),
196 Applicant Chugai Pharmaceutical Co., Ltd.

Claims (1)

【特許請求の範囲】 一般式 (式中Xは0又はsを意味する)で示されるプロスタグ
ランジン誘導体。
[Claims] A prostaglandin derivative represented by the general formula (wherein X means 0 or s).
JP57032987A 1982-03-04 1982-03-04 Novel prostaglandin derivative Pending JPS58150575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57032987A JPS58150575A (en) 1982-03-04 1982-03-04 Novel prostaglandin derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57032987A JPS58150575A (en) 1982-03-04 1982-03-04 Novel prostaglandin derivative

Publications (1)

Publication Number Publication Date
JPS58150575A true JPS58150575A (en) 1983-09-07

Family

ID=12374220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57032987A Pending JPS58150575A (en) 1982-03-04 1982-03-04 Novel prostaglandin derivative

Country Status (1)

Country Link
JP (1) JPS58150575A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410064A (en) * 1990-10-04 1995-04-25 Imperial Chemical Industries Plc Heterocyclic acids
WO2004019938A1 (en) * 2002-08-28 2004-03-11 Merck Frosst Canada & Co. Oxazolidin-2-one and thiazolidin-2-one derivatives for use as ep4 receptor agonists in the treatment of glaucoma

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410064A (en) * 1990-10-04 1995-04-25 Imperial Chemical Industries Plc Heterocyclic acids
WO2004019938A1 (en) * 2002-08-28 2004-03-11 Merck Frosst Canada & Co. Oxazolidin-2-one and thiazolidin-2-one derivatives for use as ep4 receptor agonists in the treatment of glaucoma

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