JPS5896067A - Preparation of erythro-1-(4-hydroxyphenyl)-2-(4- benzylpiperidino)-1-propanol and its intermediate - Google Patents

Preparation of erythro-1-(4-hydroxyphenyl)-2-(4- benzylpiperidino)-1-propanol and its intermediate

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Publication number
JPS5896067A
JPS5896067A JP19415881A JP19415881A JPS5896067A JP S5896067 A JPS5896067 A JP S5896067A JP 19415881 A JP19415881 A JP 19415881A JP 19415881 A JP19415881 A JP 19415881A JP S5896067 A JPS5896067 A JP S5896067A
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Japan
Prior art keywords
compound
formula
aromatic
erythro
represented
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JP19415881A
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Japanese (ja)
Inventor
Shigekazu Takenaka
竹中 繁和
Tadashi Toga
栂 正
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Hamari Chemicals Ltd
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Hamari Chemicals Ltd
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Priority to JP19415881A priority Critical patent/JPS5896067A/en
Publication of JPS5896067A publication Critical patent/JPS5896067A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prepare the titled compound, economically, by reducing a novel intermediate derived from 4-aromatic acyloxy-alpha-halogenopropiophenone and 4- benzylpiperidine, etc. with boron hydride compound, and hydrolyzing the reaction product. CONSTITUTION:The novel substance of formula III or its salt is prepared either by reacting the compounf of formula V (ArCO is aromatic acyl; X is halogen) with 4-benzylpiperidine or by acylating the compound of formula IV with an aromatic carboxylic acid. The novel substance is reduced with a boron hydride compound to an erythro compound of formula II[when the ArCO is (substituted) benzoyl, the compound is novel], which is hydrolyzed to obtain the erythro compound of formulaIor its salt having the activity to improve the blood flow in the cerebral vessel, and useful as a drug for the circulatory organs. The objective compound can be obtained in high yield, without using expensive catalyst nor a pressure vessel.

Description

【発明の詳細な説明】 本発明は、式(1) で示されるエリスロ1−(4−ヒドロキシフェニル)−
2−(4−ペッツルビペリジノ)−]]−プロパノール
はその塩類の要造f去およびその中間体に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides an erythro-1-(4-hydroxyphenyl)-
2-(4-petzurubiperidino)-]]-propanol relates to the formation of its salts and its intermediates.

式(T、)の化合圀は111石血流の改善作用を有し、
循環器用医薬品として月」いられる。
The compound of formula (T,) has the effect of improving blood flow of 111 stones,
It can be used as a cardiovascular drug.

この化合・吻の製義法としては、従来、1−(4、置換
フェニル)−2−(4−ヘンシルピペリジノ)−プロパ
ノンをパラジウムl!l虫4県を月]いて加l胤、加圧
下に水素化する方法(′+?f公昭47−1.5348
号)、1−(4−置換フェニル)−2−1−ペンシルピ
リジノ)−プロパノンをバランラム触媒を用いて上記同
順に水素化する方法(特開昭50−4081号)、l−
(4M、換フェニル)−2−(4−ヘンシルピペリジノ
)−プロパノンを水素化金属化合物で還元したのち、パ
ラジウム触媒を用いて水素化する方法(特開昭55−2
8903号)等が刈られている。
Conventionally, the method for producing this compound/proboscis has been to convert 1-(4, substituted phenyl)-2-(4-hensylpiperidino)-propanone into palladium l! A method of hydrogenation under pressure ('+?f Publication 47-1.5348)
No.), a method of hydrogenating 1-(4-substituted phenyl)-2-1-pencylpyridino)-propanone using a balanrum catalyst in the same order as above (JP-A-50-4081), l-
A method in which (4M, substituted phenyl)-2-(4-hensylpiperidino)-propanone is reduced with a metal hydride compound and then hydrogenated using a palladium catalyst (JP-A-55-2
No. 8903) etc. are being cut.

しかしながら、これらの方法は水素添加において高価な
パラジウム触媒を使用し、また加温、加圧下に反応を行
うので、工業的には必すしも有利な方法とは言い難い。
However, these methods use an expensive palladium catalyst in hydrogenation and carry out the reaction under heating and pressure, so they cannot necessarily be said to be industrially advantageous.

本発明者らは、このような技術」二の背眼を考慮してさ
らに有利な方法の探究に努めた結界、本発明を完成する
に至った。
The present inventors have completed the present invention, which is a barrier, by striving to find a more advantageous method in consideration of the drawbacks of such technology.

本発明は、4−芳香族アシルオキシ−α−ハロケノブロ
ビオフェノンに4−ベンジルピペリシンを反1志させ、
一般式曲) IT3 (式中、A r C(、)は芳香族アンル基を表わす)
で示されるα・−ピペリソノプロピオフェノン誘導体又
はその塩を得、この化合物を水素化ポウ素化合物で還元
して、一般式曲 (式中、ArC0は前記と同義) で示されるエリスロ1(4−芳香幌アンルオキシフェニ
ル)−2−(4−ヘンシルピペリジノ)=1−プロパツ
ールを得、ついて加水分解することを特徴とする式(■
) −Q 示すしるエリスロ1−(4−ヒドロキシフェニル
)−2−(4−ヘンシルピペリジノ)−1−プロパツー
ル又はその塩の製造法、および式(1v) で示される1−(4−ヒドロキシフェニル)−2−(4
−ベンジルピペリジノ)−プロパノンを芳香族カルボン
酸でアシル化して、一般式0n)(式中、ArC0は前
記と同義) で示されるα−ピペリジノプロビオフェノン誘導体又は
その塩を得、これを水素化ホウ素化合物で還元して、一
般式(11) (式中、ArC0は前記と同義) で示されるエリスロ1−(4−芳香族アシルオキシフェ
ニル>−2−<4−ベンジルピペリジノ)1−■プロパ
ツールをイ昼、ついで加水分解することを特徴とする式
+I) で示されるエリスロt−(a−ヒドロキシフェニル)−
2−(4−ヘンシルピペリジノ)−】−プロパノール又
はその、臨類の製造法、ならびに式(IIつ (式中、RCOは置換されていてもよいベンツイル基を
表わす) で示されるエリスロ1−(4−アリロイルオキシフェニ
ル’)−2−(4−ペンシルピペリジノ)−1−プロパ
ツールである。
The present invention provides 4-aromatic acyloxy-α-halochenobrobiophenone with 4-benzylpipericine,
General formula) IT3 (In the formula, A r C (,) represents an aromatic anru group)
An α·-piperisonopropiophenone derivative or a salt thereof is obtained, and this compound is reduced with a borohydride compound to obtain erythro 1, which is represented by the general formula (wherein ArC0 has the same meaning as above). The formula (■
) -Q A method for producing erythro 1-(4-hydroxyphenyl)-2-(4-hensylpiperidino)-1-propatol or a salt thereof, and 1-(4 represented by formula (1v)) -hydroxyphenyl)-2-(4
-benzylpiperidino)-propanone is acylated with an aromatic carboxylic acid to obtain an α-piperidinoprobiophenone derivative or a salt thereof represented by the general formula 0n) (wherein ArC0 has the same meaning as above); is reduced with a borohydride compound to obtain erythro 1-(4-aromatic acyloxyphenyl>-2-<4-benzylpiperidino) represented by the general formula (11) (wherein ArC0 has the same meaning as above) 1-■ Erythro t-(a-hydroxyphenyl)- represented by the formula +I) characterized by hydrolyzing propatool overnight and then
2-(4-hensylpiperidino)-]-propanol or a process for producing it, and erythro 1 represented by the formula (II (in the formula, RCO represents an optionally substituted benzyl group)) -(4-aryloyloxyphenyl')-2-(4-pencylpiperidino)-1-propanol.

本発明の方法はlaFのように式示される。The method of the invention is expressed as laF.

) (I) (式中、ArC0は芳香族アシル基を、ArC0Xは芳
香族カルボン酸の反応性誘導体を表わす)ArCOで示
される芳香族アシル基はフェニル基(Q) の4位の水酸基を保護するためのもので最後の工程では
除去されるから、目的を崖しうる限りいずれでもよく、
ベンゾイル基またはi・リロイル基のような置換された
ペッツイル基で代表させることができる。
) (I) (In the formula, ArC0 represents an aromatic acyl group, and ArC0X represents a reactive derivative of aromatic carboxylic acid.) The aromatic acyl group represented by ArCO protects the 4-position hydroxyl group of the phenyl group (Q). It is meant to do this and will be removed in the final step, so any option is fine as long as it accomplishes the purpose.
It can be represented by a benzoyl group or a substituted petzyl group such as an i.liloyl group.

4−芳香族アシルオキシ−〇−ハロケノブロピオフェノ
ンを4−ベンジルビペラシンと縮合させて化合物(II
I)を生成させる反応は、反応に関与しない溶媒中で御
飯に加温下に行われる。溶媒としてはアルコール類が好
ましい。
The compound (II
The reaction to produce I) is carried out in a solvent that does not participate in the reaction while heating rice. Alcohols are preferred as the solvent.

1−(4−ヒドロキシフェニル)−2−(4−□ ヘン
シルピペリジノ)−1−プロパノン(Ilアシル化して
化合物冊を生成させる反応は、一般にフェノール性水酸
基をアシル化する方法に準じて、たとえば、化合物(I
V)のアルカリ塩水溶液をトルエンのような非反応性俗
媒に溶、解した芳香族カルホン酸ハライドの溶液中に滴
下1ツて生成させることができる。また、たとえば、非
反応性浴媒中で化合物(1v)と芳香族カルホン酸無水
物を反応させてもよい。
The reaction of 1-(4-hydroxyphenyl)-2-(4-□hensylpiperidino)-1-propanone (Il acylation to produce a compound book is generally carried out according to the method of acylating a phenolic hydroxyl group, For example, compound (I
It can be produced by dropping an aqueous solution of the alkali salt of V) into a solution of an aromatic carbonic acid halide dissolved in a non-reactive common medium such as toluene. Alternatively, for example, compound (1v) and aromatic carbonic acid anhydride may be reacted in a non-reactive bath medium.

(10) かくして、新規化合換器またはその塩が得られる。(10) A novel compound converter or a salt thereof is thus obtained.

ついで、化合物価またはその塩を水素化ホウ素化合物を
用いて鰯元して1−(4−芳香族アシルオキシフェニル
)−2−(4−ペンシルピペリシン)−1−プロパツー
ル(1,1)を生成させる。
Then, the compound value or its salt was converted using a borohydride compound to give 1-(4-aromatic acyloxyphenyl)-2-(4-pencylpipericine)-1-propanol (1,1). Generate.

化合換器の塩類としては、たとえば、塩酸頃、硫酸塩、
臭化水素酸’Jaのような鉱酸塩、酢酸塩、酒石酸塩の
ような有機酸塩を挙げることかできる。
Salts for compound converters include, for example, hydrochloric acid, sulfate,
Mention may be made of mineral acid salts such as hydrobromic acid 'Ja', and organic acid salts such as acetate and tartrate.

水素化ホウ素化合物としては、たとえば、水素化ホウ素
すトリウム、水素化ホウ素カリウム、水素化ホウ素カル
シウム、水素化ホウ素アルキルアンモニウムなどを挙げ
ることができる力へ取J2uい等の便宜−に水素化ホウ
素す1〜リウムの使用が望ましい。
Examples of the borohydride compound include thorium borohydride, potassium borohydride, calcium borohydride, and alkylammonium borohydride. It is preferable to use 1 to 100 ml.

化合物面)またはその塩と水素化ホウ素化合物との反応
はケ1〜ンを第二級アルコールに還元する公知の方法に
準して、たとえば少量の塩酸を加えた低級アルコール中
に化合物(In)を溶解し、(11) 冷、1、II Fに水素化ホウ素化合物を除々に開える
こと(こ」ニー、て行イ)れる。
The reaction of the compound (In) or its salt with the borohydride compound is carried out in accordance with the known method of reducing the compound (In) to a secondary alcohol. (11) Cool, gradually open the borohydride compound into 1, II F.

かくして化合物(II)か得られる、。Compound (II) is thus obtained.

なお、]−(]71−置換フェニル−2−[4−ヘンン
ルビペリノノ(Fiたはビノリシノ)1−ゾロバノノを
還+1LL−c化合物(11)を得る従来の方法にjj
いては所望のエリスロ体と共ニかすl)の量のスレオ体
の副生を免れないが、本発明の方法によれば]−記の工
程においてエリスロ体の生成率がきわめて商(、スレオ
体は2%以下生成するにすぎない(クロマ1〜スキャナ
ー;島原製作所製C5−901で測定)。
]-(]71-Substituted phenyl-2-[4-hennrubiperinono (Fi or vinylicino)
However, according to the method of the present invention, the production rate of erythro isomer is extremely low in the process described above. is produced in an amount of 2% or less (measured with Chroma 1~Scanner; C5-901 manufactured by Shimabara Seisakusho).

かくして得られた化合物([1)の説アリロイル化は、
たとえハ、フェノールヘンソイルエステルの加水分解に
準して、水酸化カリウムのような強アルカリを用いて行
うことかできる。
The theory of aryloylation of the compound ([1) thus obtained is as follows:
For example, similar to the hydrolysis of phenol hensoil ester, it can be carried out using a strong alkali such as potassium hydroxide.

以上のようにして目的物(1)を高価な触媒や4千容器
を用いることなく、しかも収率よく製造することかでき
る3゜ 次に実施例を挙げて本発明をさらに詳細に説(I2) 明する。
As described above, the target product (1) can be produced in good yield without using expensive catalysts or 4,000 containers. ) to clarify.

実施例1 (])  ]4−ヘンツイルオキシフェニルーal−7
/’ oムプロビオフェノン3.3y、4−ペンシルピ
ペリシン1.7y、重炭酸すI〜リウム0.82および
メタノール20meを5時間加熱還流する。反応路T後
、メタノールを留去し、残留物にトルエン501111
!を加え、トルエン層を水洗し、脱水乾燥後、溶媒を減
圧留去する。残留物にメタノールを加え、結晶化させこ
れをろ取し、少量のメタノールで洗浄してI−(4−ベ
ンゾイルオキシフェニル)−2−(4−ペンシルピペリ
シン)−プロパノン23y(収率54.7%)を得る。
Example 1 (]) ]4-Hentyloxyphenyl-al-7
3.3 y of probiophenone, 1.7 y of 4-pencylpipericine, 0.82 y of sodium bicarbonate and 20 me of methanol are heated under reflux for 5 hours. After reaction path T, methanol is distilled off and toluene 501111 is added to the residue.
! is added, the toluene layer is washed with water, dehydrated and dried, and the solvent is distilled off under reduced pressure. Methanol was added to the residue to crystallize it, which was collected by filtration and washed with a small amount of methanol to give I-(4-benzoyloxyphenyl)-2-(4-pencylpipericine)-propanone 23y (yield 54. 7%).

融点;102〜103°C 元素分析1iiI  C25H2qNOa計算値纂c 
、 78.66%; +−T 、 6.87%;N、3
.28%実験値;c、78.57%i )T 、、6.
89%iN、3.24%IR(又ショール、6In’) 1.682    カルボニル基(ケトン)1733 
  カルボニル基(エステル)(13) N、M、R,(CI)C13,ppm)1.24   
  (31(、cl)   −CH32,45(21−
1、m )  −CH2−Pb4.39    (IH
,q)   〉CI!−CH37,18〜8.22  
(14,H,m)   芳香環ブ叶・ン(2)]−(]
4−ペンゾイルオギンフェニル−2−(4−ヘンレルビ
ベリシノ)−ブO)マノン4゜2yを、メタノ四ル10
 omeに訓塩酸2 Jを加えた液に溶解し、5〜10
″Cに冷却して、水素化ホウ素すトリウム1.9yを徐
々に加え、添加後、同温度で2時間がきまぜる。反応混
合物中に水200 meを加え、希臨酸で強酸性にした
後、炭酸カリウム水溶液でアルカリ性にし、クロロホル
ムで抽出する。このクロロホルムノーを水洗、脱水乾燥
後、溶媒を減圧下で留去する。残留物にイソプロピルア
ルコールを加えて、析出した結晶をろ取して、エリスロ
1(4−へ、7ソイルオキシフエニル)−2−(4−ペ
ンシルピペリシン)−1−プロパツール3.9y(収″
$928%)を得る。
Melting point: 102-103°C Elemental analysis 1iiiI C25H2qNOa calculation value collection
, 78.66%; +-T, 6.87%; N, 3
.. 28% experimental value; c, 78.57%i) T,,6.
89% iN, 3.24% IR (also Scholl, 6In') 1.682 Carbonyl group (ketone) 1733
Carbonyl group (ester) (13) N, M, R, (CI) C13, ppm) 1.24
(31(,cl) -CH32,45(21-
1, m) -CH2-Pb4.39 (IH
,q) 〉CI! -CH37,18~8.22
(14, H, m) Aromatic ring (2)] - (]
10
Dissolve ome in a solution of 2 J of hydrochloric acid and add 5 to 10
After cooling to a temperature of 1.9°C, 1.9y of sodium borohydride was gradually added, and after the addition, the mixture was stirred at the same temperature for 2 hours. 200ml of water was added to the reaction mixture, and the mixture was made strongly acidic with dilute phosphoric acid. , made alkaline with an aqueous potassium carbonate solution, and extracted with chloroform. After washing the chloroform with water, dehydrating and drying, the solvent was distilled off under reduced pressure. Isopropyl alcohol was added to the residue, and the precipitated crystals were collected by filtration. Erythro 1(4-to,7 Soyloxyphenyl)-2-(4-pencylpipericine)-1-propatool 3.9y (yield)
$928%).

(]4) 融点;]552〜154° C素分析値 C2gHa+NQa 計算値;c、78.29%;H,7,27%;N、3.
26%実験値;c、78.35%iH,7,15%;N
、3.24%IR(スン日−ル、砿 ) 3.150    水酸基 1725       カルボニル基 N 、M 、R、(CI’)CH3、ppm、)0.8
4     (3H,d)   −CH33,84〜3
.86  (I H、s )   −0H4,84(I
H,a)   −CH 7、]〜8.2    (14H、m )   芳香環
プロトン(3)  エリスロ1−(4−ヘンジイルフェ
ニル)=2−(4−ペンシルピペリジノ)−1−プロパ
ツール2yを1%水酸化カリウムメタノール溶液65 
meに懸濁させ、室温で15時間かきまぜた後、希塩酸
を加えて酸性としたのち、溶媒を減圧留去する。残留物
にメタノール40 me加えて加熱溶解し、28%アン
モニア水でpH9とした後、溶媒を減圧留去1ツ、残留
物に水を加え(15) て結晶を析出させ、これをろ取する13イソプロピルア
ルコールから再結晶して、エリスロ1−(4−ヒドロキ
シフェニル)−2−(4−ペンシルピペリジノ)−1−
プロパツール]、、5y(収率99%)を得る。融点;
113〜114°C8本品は、公升の方法より得られた
標品と、混融試験を行−0た結果、融点降下かなかった
(]4) Melting point; ]552-154°C Elementary analysis value C2gHa+NQa Calculated value; c, 78.29%; H, 7,27%; N, 3.
26% experimental value; c, 78.35% iH, 7,15%; N
, 3.24% IR (Sunday Le, 砿) 3.150 Hydroxyl group 1725 Carbonyl group N, M, R, (CI') CH3, ppm,) 0.8
4 (3H, d) -CH33,84~3
.. 86 (I H,s) -0H4,84(I
H,a) -CH7,]~8.2 (14H,m) Aromatic ring proton (3) Erythro 1-(4-hendiylphenyl)=2-(4-pencylpiperidino)-1-propatol 2y in 1% potassium hydroxide methanol solution 65
After stirring at room temperature for 15 hours, the mixture was made acidic by adding dilute hydrochloric acid, and the solvent was distilled off under reduced pressure. Add 40 me methanol to the residue and dissolve with heat, adjust the pH to 9 with 28% aqueous ammonia, distill off the solvent under reduced pressure, add water to the residue (15) to precipitate crystals, and collect by filtration. 13 Recrystallized from isopropyl alcohol to give erythro 1-(4-hydroxyphenyl)-2-(4-pencylpiperidino)-1-
5y (yield 99%). Melting point;
113-114°C8 This product was subjected to a mixing test with a specimen obtained by Kosho's method, and as a result, there was no drop in the melting point.

実施例2 l−(4−ヒドロキシフェニル)−2−(4−ヘノシル
ビペリジノ)−プロパノン16Pを22%水酸化す1〜
リウノ・水溶液100 meに溶解し、この溶性中に塩
化ヘンソイル7yをトルエノ100 meに溶解した溶
液を、5〜10℃で滴下する。同温度で1時間かきまぜ
たのち、トルエノ層を分離、水洗乾燥後、溶媒を減圧留
去した。残留物にメタノールを加えて結晶を析出させ、
これをろ取[ッ、少量のメタノールで洗浄して]−<4
−ペンゾイルオキンフェニル)−2この1−(4−ヘン
ソイルオキノフェニル)−2−(4−ペンシルピペリジ
ノ)−プロパノンに実施例1と同様の操作を行って、1
−(4−ヒトロギシフエニル)−2−(4−ペンシルピ
ペリジノ)−〕−ププロパツールヲる。
Example 2 22% hydroxylation of l-(4-hydroxyphenyl)-2-(4-henosylbiperidino)-propanone 1-
It is dissolved in 100 me of a liuno aqueous solution, and into this solution, a solution of hensoil chloride 7y dissolved in 100 me of tolueno is added dropwise at 5 to 10°C. After stirring at the same temperature for 1 hour, the tolueno layer was separated, washed with water and dried, and the solvent was distilled off under reduced pressure. Add methanol to the residue to precipitate crystals,
Filter this out [Wash with a small amount of methanol] -<4
-penzoyloquinophenyl)-2 This 1-(4-penzoyloquinophenyl)-2-(4-pencylpiperidino)-propanone was subjected to the same operation as in Example 1, and 1
-(4-hydroxyphenyl)-2-(4-pencylpiperidino)-]-propanol.

出願人 浜理薬品工業株式会社Applicant: Hamari Pharmaceutical Co., Ltd.

Claims (1)

【特許請求の範囲】 1 4  ’M香族アンルオキンー〇−ハロゲノプロピ
オフェノンに4−ベンジルピペリシンを反応させ、一般
式(III ) (式中、A r COは芳香族アシル基を表わす)で示
されるα−ビペリシノブロビオフェノン誘導体又はその
塩をf尋、この化合物を水素化ホウ素化合物で還元して
、−ft2式曲 (式中、ArC0は11官記と同義) で示されるエリスτコ1−(4−M=香族アンルオキン
フェニル)−2−(/I−ヘンシルピペリジノ)=1−
プロパツールを得、ついて加、tJ<分解することを特
徴とする式11) て示されるエリスロI−(4−ヒI・ロキシフェニル)
−2−(4−へノシルビペリシノ)−1−プロバノール
又はそのjLSの製造法2 式(II’) で示される1−(4−ヒドロキンツーアニル)−2−(
4−ヘンシルピペリジノ)−プロパノンを芳香族カルボ
ッ酸でアシル化して、一般式(III)(式中、ArC
0はIJ’+1記と同義)で示されるa+−ピペリジノ
プロピオフェノン誘導体又はその塩を得、これを水素化
ホウ素化合物で還元して、一般式(m (式中、ArC0は前記と同ム) で示されるエリスロ1−(4−芳香族アンルオキンフェ
ニル)−2−(4−ヘンシルピペリジノ)−1−プロパ
ツールを得、ついて加水分子?fすることを待敵とする
式(I) で示されるエリスロ1’−(4−ヒドロキシフェニル)
−2−(4−ヘンシルピペリジノ)−1−プロバノール
又はその塩類の製造法 3 式(1’l’ ) (式中、RCOは1[q換されていてもよいペッツイル
基を表イ)す) で示すしるエリス01−(/l−アリロイルオキソフェ
ニル)−2−(4−ヘンシルピペリジノ)−1−プロパ
ツール
[Claims] A 14'M aromatic anluoquine--halogenopropiophenone is reacted with 4-benzylpipericine to form a compound of the general formula (III) (wherein A r CO represents an aromatic acyl group). The α-biperisinobrobiophenone derivative shown or its salt is reduced, and this compound is reduced with a borohydride compound to obtain an eris τ represented by the -ft2 formula (wherein ArC0 is synonymous with 11th kanji). Co1-(4-M=aromatic anluoquinphenyl)-2-(/I-hensylpiperidino)=1-
Erythro I-(4-HI-roxyphenyl) represented by the formula 11) characterized by obtaining the property tool, adding, and decomposing tJ<
-2-(4-henosylbiperisino)-1-probanol or its jLS production method 2 1-(4-hydroquintuanyl)-2-( represented by formula (II')
4-hensylpiperidino)-propanone is acylated with an aromatic carboxylic acid to give the general formula (III) (wherein ArC
0 is the same as IJ' + 1)) is obtained, and this is reduced with a boron hydride compound to obtain the a+-piperidinopropiophenone derivative or its salt represented by the general formula (m (wherein ArC0 is the same as above). The main enemy is to obtain erythro 1-(4-aromatic anluoquinphenyl)-2-(4-hensylpiperidino)-1-propatool shown in Erythro 1'-(4-hydroxyphenyl) represented by formula (I)
-2-(4-hensylpiperidino)-1-probanol or its salts manufacturing method 3 Formula (1'l') (wherein RCO represents a petzyl group that may be substituted with 1[q)] 01-(/l-aryloyloxophenyl)-2-(4-hensylpiperidino)-1-propanol
JP19415881A 1981-12-01 1981-12-01 Preparation of erythro-1-(4-hydroxyphenyl)-2-(4- benzylpiperidino)-1-propanol and its intermediate Pending JPS5896067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19415881A JPS5896067A (en) 1981-12-01 1981-12-01 Preparation of erythro-1-(4-hydroxyphenyl)-2-(4- benzylpiperidino)-1-propanol and its intermediate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19415881A JPS5896067A (en) 1981-12-01 1981-12-01 Preparation of erythro-1-(4-hydroxyphenyl)-2-(4- benzylpiperidino)-1-propanol and its intermediate

Publications (1)

Publication Number Publication Date
JPS5896067A true JPS5896067A (en) 1983-06-07

Family

ID=16319878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19415881A Pending JPS5896067A (en) 1981-12-01 1981-12-01 Preparation of erythro-1-(4-hydroxyphenyl)-2-(4- benzylpiperidino)-1-propanol and its intermediate

Country Status (1)

Country Link
JP (1) JPS5896067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989660A (en) * 1982-10-13 1984-05-23 シンセラボ 1-phenyl-2-piperidinoalkanol derivative
GB2428675A (en) * 2005-07-29 2007-02-07 Arakis Ltd Ifenprodil derivatives

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989660A (en) * 1982-10-13 1984-05-23 シンセラボ 1-phenyl-2-piperidinoalkanol derivative
JPS6158472B2 (en) * 1982-10-13 1986-12-11 Synthelabo
GB2428675A (en) * 2005-07-29 2007-02-07 Arakis Ltd Ifenprodil derivatives

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