JPS5859983A - Preparation of pyrrolopyrimidine - Google Patents

Preparation of pyrrolopyrimidine

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Publication number
JPS5859983A
JPS5859983A JP15807481A JP15807481A JPS5859983A JP S5859983 A JPS5859983 A JP S5859983A JP 15807481 A JP15807481 A JP 15807481A JP 15807481 A JP15807481 A JP 15807481A JP S5859983 A JPS5859983 A JP S5859983A
Authority
JP
Japan
Prior art keywords
pyrrolo
maleimide
added
hydroxy
amino
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.)
Granted
Application number
JP15807481A
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Japanese (ja)
Other versions
JPH0216309B2 (en
Inventor
Kiyoshi Fukui
福井 喜代志
Junichiro Kita
淳一郎 北
Susumu Fujimura
進 藤村
Kiyomi Okimoto
沖本 清美
Hiroshi Jibiki
地曳 広志
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.)
Ube Corp
Original Assignee
Ube Industries Ltd
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Publication date
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Priority to JP15807481A priority Critical patent/JPS5859983A/en
Publication of JPS5859983A publication Critical patent/JPS5859983A/en
Publication of JPH0216309B2 publication Critical patent/JPH0216309B2/ja
Granted legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

NEW MATERIAL:A compound of formulaI{R<1> is 1-4C alkyl, 2-4C alkenyl, 5-7C cycloalkyl, 7-10C aralkyl or group of formula II[R<2> is 1-4C alkyl or halogen; (n) is an integer 0, 1, 2 or 3] . EXAMPLE:3, 6-Dimethyl -2- hydroxy -3, 4, 6, 7-tetrahydro-4, 5, 7-trioxo-5H-pyrrolo [3 4-d]pyrimidine. USE:Useful as medicines, agricultural chemicals or synthetic intermediates therefor. PROCESS:An aminomaleimide of formula III, e.g. 3-amino-1-methyl-4-(methylcarbamoyl) maleimide, is reacted with phosgene or trichloromethyl chloroformate in the presence of pyridine in a solvent, e.g. benzene or chloroform, at -20- +100 deg.C for 1-30hr to afford the compound of formulaI.

Description

【発明の詳細な説明】 この−明は・新規化合物であるピロロピリミジン類の製
造法である。さらに詳しくは、この発明は、 式 〔式中、Rヒ炭素数1〜4のアルキル基、炭素数2〜4
のアルケニル基、炭素数5〜7のシクロアルキル基、炭
素数7〜10のアラルキル基tまたは一0’(R2は炭
素数1〜4のアルキル基またはハロゲン原子を示し、n
は0,1・2または6である。)で表わされる基を示す
。〕で表わされるアミノマレイミド類と、ホスゲンまた
はクロロギ酸トリクロロメチルエステルとを、ピリジン
の存在下に反応させることを特徴とする 式 (式中、 Hlは前記と同一の意味を有する。)で表わ
される2−ヒドロキシ−3,4+6 +7−チトラビド
ロー4,517−1リオキソ−5H−ピロロ(314−
d〕ピリミジン類の製造法である。
DETAILED DESCRIPTION OF THE INVENTION This invention is a method for producing pyrrolopyrimidines, which are novel compounds. More specifically, this invention is based on the formula [wherein R] is an alkyl group having 1 to 4 carbon atoms;
alkenyl group having 5 to 7 carbon atoms, cycloalkyl group having 5 to 7 carbon atoms, aralkyl group having 7 to 10 carbon atoms t or 10' (R2 represents an alkyl group having 1 to 4 carbon atoms or a halogen atom, n
is 0, 1.2 or 6. ) represents a group. ] and phosgene or chloroformic acid trichloromethyl ester in the presence of pyridine (wherein Hl has the same meaning as above) 2-Hydroxy-3,4+6 +7-titravidro 4,517-1 rioxo-5H-pyrrolo(314-
d] A method for producing pyrimidines.

式〔■〕で表わされるピロロピリミジン類は、新規化合
物であシ、医薬、農薬、さらにはこれらの中間体として
有用である。
Pyrrolopyrimidines represented by the formula [■] are useful as new compounds, medicines, agricultural chemicals, and intermediates thereof.

式〔I〕で表わされるアミノマレイミド類の具体例とし
ては、3−アミノ−1−メチル−4−(メチルカルバモ
イル)マレイミド、3−アミノ−1〒エチル−4−(エ
チルカルバモイル)マレイミド、3−アミノ−1−プロ
ピル−4−(プロピルカルバモイル)マレイミド、3−
アミノ−1−ブチル−4−(7”チルカルバモイル)マ
レイミド。
Specific examples of aminomaleimides represented by formula [I] include 3-amino-1-methyl-4-(methylcarbamoyl)maleimide, 3-amino-1ethyl-4-(ethylcarbamoyl)maleimide, and 3-amino-1-ethyl-4-(ethylcarbamoyl)maleimide. Amino-1-propyl-4-(propylcarbamoyl)maleimide, 3-
Amino-1-butyl-4-(7” tylcarbamoyl)maleimide.

1−71Jルー己−(アリルカルバモイル)−a−アミ
ノマレイミド、3−アミノ−1−シクロヘキシル−4−
(シクロヘキシルカルバモイル)マレイミド、3−アミ
ノ−1−ベンジル−4−(ベンジルカルバモイル)マレ
イミド、3−アミノ−1−フェニル−4−(フェニルカ
ルバモイル)マレイミドt 3−アミノ−1−クロロフ
ェニル−4−(クロロフェニルカルバモイル)マレイミ
ド、3−アミノ−1−ジクロロフェニル−4−(ジクロ
ロフェニルカルバモイル)マレイミドなどが挙げられる
1-71J-(allylcarbamoyl)-a-aminomaleimide, 3-amino-1-cyclohexyl-4-
(cyclohexylcarbamoyl)maleimide, 3-amino-1-benzyl-4-(benzylcarbamoyl)maleimide, 3-amino-1-phenyl-4-(phenylcarbamoyl)maleimide t 3-amino-1-chlorophenyl-4-(chlorophenyl carbamoyl)maleimide, 3-amino-1-dichlorophenyl-4-(dichlorophenylcarbamoyl)maleimide, and the like.

この発明の方法におけるピリジン存在下での式〔I〕で
表わされるアミノマレイミド類とホスゲン−またはクロ
ロギ酸トリクロロメチルエステルとの反応は、溶媒を用
いて行なうことが好ましい。溶媒としては、この発明の
方法における反応に不活性なものであればp どのよう
なものでもよく、た゛トエハ、 ベンゼン、トルエン、
クロロベンゼン。
In the method of this invention, the reaction of the aminomaleimide represented by formula [I] with phosgene or trichloromethyl chloroformate in the presence of pyridine is preferably carried out using a solvent. The solvent may be any solvent as long as it is inert to the reaction in the method of this invention, such as ether, benzene, toluene,
Chlorobenzene.

ジクロロベンゼンなどの芳香族炭化水素、塩化メチレン
、クロロホルム、四塩化炭素、塩化エチレンなどのハロ
ゲン化炭化水素などが挙げられる。
Examples include aromatic hydrocarbons such as dichlorobenzene, halogenated hydrocarbons such as methylene chloride, chloroform, carbon tetrachloride, and ethylene chloride.

なお、溶媒は反応に先立ち十分に脱水しておくことが好
ましい。
Note that the solvent is preferably sufficiently dehydrated prior to the reaction.

原料の添加順序については特に制限はないが。There are no particular restrictions on the order in which the raw materials are added.

アミノマレイミドおよびピリジンを含む有機溶媒の溶液
または懸濁液に、ホスゲンまたはクロロギ酸トリクロロ
メチルエステルの有機溶媒溶液を添加するのが便利であ
る。
It is convenient to add a solution or suspension of phosgene or chloroformic acid trichloromethyl ester in an organic solvent to a solution or suspension containing the aminomaleimide and pyridine in an organic solvent.

アミノマレイミド類の使用量は、ホスゲン1モル当り0
.4〜1モル、クロロギ酸トリクロロメチルエステル1
モル当す0,2〜0.5モルでアルコトが好ましく、目
的物を収率よ〈得るためにはホスゲン1モル当す0.4
〜0.5モル、クロロキ酸トリクロロメチルエステル1
モル当す0.2〜0.25モルであることが特に好まし
い。
The amount of aminomaleimide used is 0 per mole of phosgene.
.. 4-1 mol, chloroformic acid trichloromethyl ester 1
Alkoxide is preferable at 0.2 to 0.5 mol per mol, and in order to obtain the desired product in a yield of 0.4 to 0.4 mol per mol of phosgene.
~0.5 mol, chloroxic acid trichloromethyl ester 1
Particularly preferred is 0.2 to 0.25 mol per mole.

ピリジンの使用量は、ホスゲン1モル当り約2モル、ク
ロロキ酸トリクロロメチルエステル1モル当シ約4モル
であることが好ましい。
The amount of pyridine used is preferably about 2 moles per mole of phosgene and about 4 moles per mole of trichloromethyl chlorooxylate.

反応温度は、過度に高いと目的生成物の収率が低下する
ので、一般には一20〜100℃の範囲の温度を採用す
るのが好ましい。反応時間は通常1〜30時間である。
If the reaction temperature is too high, the yield of the desired product will decrease, so it is generally preferable to employ a temperature in the range of -20 to 100°C. The reaction time is usually 1 to 30 hours.

目的生成物であるピロロピリミジン類は、たとえば、つ
ぎの方法によって単離することができる。
The target product, pyrrolopyrimidines, can be isolated, for example, by the following method.

反応生成混合物を水洗して、副生ずる塩化ピリジニウム
を水溶液として除去した後、有機溶媒を留去し、目的生
成物を含む混合物を取得し、この後、再結晶法などの慣
用の精製法によって目的生成物の精製品を単離する。
After washing the reaction product mixture with water to remove by-product pyridinium chloride as an aqueous solution, the organic solvent is distilled off to obtain a mixture containing the desired product. Isolate the purified product.

この発明で得られる式〔■〕で表わされるピロロピリミ
ジン類の具体例としては、6,6−シメチルー2−ヒド
ロキシ−3,4,6,7−チトラヒドロー425.7−
1リオキソ−5H−ピロロ〔ろ、4− d )ピリミジ
ン+ 3,6−シエチルー2−ヒドロキシ−3゜4 +
6 +7−チトラヒドロー49517 ’−トリオキレ
−5H−ピロロC’>、4−d〕ピリミジン、3,6−
ジプロビルー2−ヒドロキシ−3+4 +6 +7−テ
トラヒドロ−4+5tフードリオキソー5H−ピロロ[
:3.4−d]ピリミジン、3,6−シプチルー2−ヒ
ドロキシ−3141617−チトラヒドロー4 +5.
7)ジオキソ−5H−ピロロ〔314、a ]ピリミジ
ン、6I6−ジアリル−2−ヒドロキシ−3、a 、6
.7−チトラヒドローa +5 +7  トリオキレ−
5H−ピロロ(3,4−d〕ピリミジン、3,6−ジシ
クロへキシル−2−ヒドロキシ−3,4,6,7−テト
ラヒドロ−4,59フードリオキソー5H−ピロロ[3
,4−a)ピリミジン、己、6−ジペンジルー2−ヒド
ロキシ−3+4 +6 +7−チトラヒドロー4,51
7  トリオキソ−5H−ピロロ(3,4“−・d〕ピ
リミジン、3,6−ジフエニイ′−2,1ニド6キシー
6・4・6・77テトラ3ド°−4,517−、l−ジ
オキソ−5H−ピロロ[己14−d]ヒリミシン+3:
6−ビス(クロロフェニル)−2−ヒドロキシ−3,4
+6 +7−チトラヒドロー4.5 +7−ドリオキソ
ー5H−ピロロ[3,4−d]ピリミジ/、ろ、6−ビ
ス(ジクロロフェニル)−2−ζドロキシ−3,4J6
 +7−チトラヒドローa +5.7−ドリオキソー5
H−ピロロ〔ろ94  ” :]ピリミジンなどが挙げ
られる。
Specific examples of the pyrrolopyrimidines represented by the formula [■] obtained in this invention include 6,6-dimethyl-2-hydroxy-3,4,6,7-titrahydro 425.7-
1rioxo-5H-pyrrolo[ro,4-d)pyrimidine+ 3,6-ethyl-2-hydroxy-3゜4+
6 +7-titrahydro49517'-triochyle-5H-pyrroloC'>,4-d]pyrimidine, 3,6-
Diprobyl-2-hydroxy-3+4 +6 +7-tetrahydro-4+5tfoodrioxo 5H-pyrrolo[
:3.4-d]pyrimidine, 3,6-cyptyl-2-hydroxy-3141617-titrahydro4 +5.
7) Dioxo-5H-pyrrolo[314,a]pyrimidine, 6I6-diallyl-2-hydroxy-3,a,6
.. 7-titrahydro a +5 +7 triokire-
5H-pyrrolo(3,4-d)pyrimidine, 3,6-dicyclohexyl-2-hydroxy-3,4,6,7-tetrahydro-4,59hoodrioxo 5H-pyrrolo[3
, 4-a) Pyrimidine, self, 6-dipendyl-2-hydroxy-3+4 +6 +7-titrahydro 4,51
7 trioxo-5H-pyrrolo(3,4"-・d]pyrimidine, 3,6-diphenyi'-2,1nido6xy6,4,6,77tetra3do°-4,517-,l-dioxo -5H-pyrrolo[self-14-d]hirimicin +3:
6-bis(chlorophenyl)-2-hydroxy-3,4
+6 +7-titrahydro4.5 +7-dryoxo5H-pyrrolo[3,4-d]pyrimidi/,ro,6-bis(dichlorophenyl)-2-ζdroxy-3,4J6
+7-titrahydro a +5.7-dryoxo 5
Examples include H-pyrrolo[ro94'':]pyrimidine.

つぎ′に実施例を示す。実′施例において、ピロロピリ
ミジンの収率は、使用したアミノマレイミド基準の収率
である。
Next, examples will be shown. In the examples, the yield of pyrrolopyrimidine is based on the aminomaleimide used.

実施例1 己−アミノ−1−メチル−4−(メチルカルノくモイル
)マレイミド0.921とピリジン1,715’を含む
塩化エチレン20rllに、寒剤(氷−食塩)冷却下、
クロロギ酸トリクロロメチにエステル゛1.07pを含
む塩化エチレン20m1を滴下して加えた後、混合物を
室温で攪拌しながら、1日間反応させた。
Example 1 To 20 rll of ethylene chloride containing 0.921 of self-amino-1-methyl-4-(methylcarnocumoyl)maleimide and 1,715' of pyridine was added under cooling with a cryogen (ice-salt).
After 20 ml of ethylene chloride containing 1.07 p of the ester was added dropwise to trichloromethychloroformate, the mixture was reacted at room temperature for one day with stirring.

反応後l得られた反応生成混合物に水50mを加えて濾
過し、3,6−シメチルー2−ヒドロキシ34 +6シ
7−テトラヒドロー41517  )リオキソ再結晶し
て2分解点291〜292℃の橙色針状結晶を得九。そ
の元素分析値をつぎに示す。
After the reaction, 50 mL of water was added to the resulting reaction product mixture, filtered, and 3,6-dimethyl-2-hydroxy (34+6-7-tetrahydro 41517) lyoxo-recrystallized to give an orange needle-shaped product with a decomposition point of 291-292°C. Obtain nine crystals. The elemental analysis values are shown below.

C)(N 分析値  45.98  340  1’9.87計算
値  45.94 3.3a   20.09(C8H
7N304として) 実施例2 1−71Jルー6−(アリルカルバモイル)−4−アミ
ノマレイミド1.1.8fとピリジン1.71を含む塩
化エチレン20m1に、寒剤(氷−食塩)冷却下ラ り
60ギ酸トリクロロメチルエステル1.072を含む塩
化エチレン20tttlを滴下した楓、混8合物を寒剤
(氷−食塩)冷却下に攪拌しながら、5時間反応させた
C) (N Analysis value 45.98 340 1'9.87 Calculated value 45.94 3.3a 20.09 (C8H
7N304) Example 2 To 20 ml of ethylene chloride containing 1.1.8 f of 1-71J-6-(allylcarbamoyl)-4-aminomaleimide and 1.71 g of pyridine was added 60 ml of formic acid under cooling with a cryogen (ice-salt). 20 tttl of ethylene chloride containing 1.072% of trichloromethyl ester was added dropwise to the maple mixture, and the mixture was stirred and reacted for 5 hours while cooling with a cryogen (ice-salt).

反応後、得られた反応生成混合物に、寒剤(氷−食塩)
冷却下、水5011Llを加え、水層と有機層とに分液
した。有機層を無水硫酸ナトリウムで乾燥した後、減圧
下に濃縮して得た残渣を、シリカゲル(ワコーゲルC−
200,’2005’)を詰めたカラム(直径30M)
に通し?塩化エチレンとエタノールとの容量比9:1の
混合溶媒で溶離した。溶媒32011Llで溶出して得
た溶液を、減圧下に濃縮した。残渣にベンゼン20mJ
を加えて濾過し、3,6−ジアリル−2−ヒドロキシ−
3,4,6,7−チトラヒドロー4,517−)ジオキ
ン−5H−ピロロ〔己、4−Pd )ピリミジンの結晶
0.86f(66%)を得た。これをベンゼンで再結晶
して、融点193〜194℃の微黄色微針状結晶を得た
。その元素分析値をつぎに示す。
After the reaction, a cooling agent (ice-salt) is added to the resulting reaction product mixture.
While cooling, 5011 liters of water was added to separate into an aqueous layer and an organic layer. The organic layer was dried over anhydrous sodium sulfate, concentrated under reduced pressure, and the resulting residue was purified using silica gel (Wako Gel C-
200,'2005') packed column (diameter 30M)
Through? Elution was performed with a mixed solvent of ethylene chloride and ethanol in a volume ratio of 9:1. The solution obtained by elution with 32011 Ll of solvent was concentrated under reduced pressure. 20mJ of benzene to the residue
3,6-diallyl-2-hydroxy-
0.86 f (66%) of crystals of 3,4,6,7-titrahydro-4,517-)dioquine-5H-pyrrolo[self, 4-Pd]pyrimidine were obtained. This was recrystallized from benzene to obtain pale yellow fine needle crystals with a melting point of 193-194°C. The elemental analysis values are shown below.

CHN 分析値  55,05 4.20 16.32計算値 
 55.174.25  ’16.05(”12 HI
IN3o4 トL テ)実施例ろ ?+−7ミノー1−ベンジルー4−(ベンジルカルバモ
イル)マレイミドL68fとピリジン1.682を含む
塩化エチレン20m1に、寒剤(氷−食塩)冷却下、ク
ロロギ酸トリクロロメ≠ル倶ステル1.02pを含む塩
化エチレン2’o屑1を滴下した後・混合物を室温で攪
拌しながら、200時間反応せた。
CHN Analysis value 55.05 4.20 16.32 Calculated value
55.174.25 '16.05 ("12 HI
IN3o4 ToL Te) Example? +-7 Minnow 1-benzy-4-(benzylcarbamoyl)maleimide L68f and 20 ml of ethylene chloride containing 1.682 pyridine, under cooling with a cryogen (ice-salt), chloride containing 1.02 p of trichloromethyl chloroformate After dropping 1 portion of ethylene 2'O waste, the mixture was allowed to react for 200 hours with stirring at room temperature.

反応後、得られた反応生成混合物に、水5.0 m/を
加え、水層と有機層とに分液した。有機層を無水硫酸ナ
トリウムで乾燥した後、減圧下に製部して得た残渣を、
シリカゲル(ワコーゲルC−200sjOOf )を詰
めたカラム(直径30麿)に通し・塩化エチレンと酢酸
上5ルとの容量比7:3の混合溶媒で溶離したつまず溶
媒240m1で溶出した後、溶媒’200m/で溶出し
て得た溶゛液を減圧下に濃縮した。残渣にベンゼン20
m1を加えてf過し+6.6−ジベンジル、−2−ヒド
ロキシ−3,4,6,7−テトラヒドロ−4,5,7−
)ジオキソ−5H−ピロロし314−d−3ピリミジン
の結晶1.59 f (88チ)を得た。これを酢酸エ
チルで再結晶して、融点224〜225℃の淡黄色結晶
を得た。その元素分析値をつぎに示す。
After the reaction, 5.0 m/m of water was added to the resulting reaction product mixture to separate it into an aqueous layer and an organic layer. After drying the organic layer with anhydrous sodium sulfate, the residue obtained by sectioning under reduced pressure was
Passed through a column (diameter 30 mm) packed with silica gel (Wako Gel C-200sjOOf) and eluted with 240 ml of a stumbling solvent, which was eluted with a mixed solvent of ethylene chloride and 5 liters of acetic acid in a volume ratio of 7:3. The eluate obtained by elution at 200 m/ml was concentrated under reduced pressure. Benzene 20 in the residue
Add m1 and filtrate +6.6-dibenzyl,-2-hydroxy-3,4,6,7-tetrahydro-4,5,7-
) Dioxo-5H-pyrrolotation gave 1.59 f (88 th) crystals of 314-d-3 pyrimidine. This was recrystallized from ethyl acetate to obtain pale yellow crystals with a melting point of 224-225°C. The elemental analysis values are shown below.

CH’N 分析値  66.67  4j6  11.72計算値
  66.48  4.18  11.63(020H
15N3°4として) 実施例4 3−アミノL1−フェニル−4−(フェニルカルバモイ
ル)マレイミド3.07Fとピリジン1.941を含む
塩化エチレン40tttlに、゛−寒剤(氷−食塩)冷
却下、ホスゲン1.21 Fを含む塩化エチレン20ゴ
を滴下した後、混合物を加熱して、還流下に30分間反
応させた。
CH'N Analysis value 66.67 4j6 11.72 Calculated value 66.48 4.18 11.63 (020H
Example 4 To 40 tttl of ethylene chloride containing 3.07 F of 3-amino L1-phenyl-4-(phenylcarbamoyl)maleimide and 1.94 l of pyridine, 1 phosgene was added under cooling with a cryogen (ice-salt). After dropping 20 g of ethylene chloride containing .21 F, the mixture was heated and reacted under reflux for 30 minutes.

反応後、得られた反応生成混合物に、室温で水25dを
加えて濾過し、原料アミノマレイミドの結晶0.559
を回収した。p液を水層と有機層とに分液した。有機層
を無水硫酸ナトリウムで乾燥した後、減圧下に濃縮した
。残渣をエタノール50ryeで再結晶して9分解点2
76℃の黄色微針状結晶トシて、3,6−ジフェニル−
2−ヒドロキシ−3,416,7−チトラヒドロー4.
5.7−)リオキン=5H−ピロロ〔6,4ニd〕ピリ
ミジンとエタノールとのモル比1:1の付加物0.55
1(16チ)を得た。その元素分析値をつぎに示す。
After the reaction, 25 d of water was added to the resulting reaction product mixture at room temperature and filtered to obtain 0.559 g of crystals of raw material aminomaleimide.
was recovered. The p liquid was separated into an aqueous layer and an organic layer. The organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The residue was recrystallized with 50 rye of ethanol to give a decomposition point of 9 and 2.
Yellow fine needle crystals at 76°C, 3,6-diphenyl-
2-Hydroxy-3,416,7-titrahydro4.
5.7-) Lyoquine = adduct of 5H-pyrrolo[6,4d]pyrimidine and ethanol in a molar ratio of 1:1 0.55
1 (16chi) was obtained. The elemental analysis values are shown below.

C、、HN 分析値  63.35  4.36 11.30計算値
  63.32 4.52 11.08(CzoHtr
 N30sとして) 実施例5 3−アミノ−1−フェニル−4−(フェニルカルバモイ
ル)マレイミド1.54 fとピリジン1.689を含
む塩化エチレン20m1に、寒剤(氷−食塩)冷却下、
クロロギ酸トリクロロメチルエステル1.12pを含む
塩化エチレン20−を滴下した後。
C,,HN Analysis value 63.35 4.36 11.30 Calculated value 63.32 4.52 11.08 (CzoHtr
Example 5 To 20 ml of ethylene chloride containing 1.54 f of 3-amino-1-phenyl-4-(phenylcarbamoyl)maleimide and 1.689 f of pyridine, under cooling with a cryogen (ice-salt),
After adding dropwise 20 - of ethylene chloride containing 1.12 p of chloroformic acid trichloromethyl ester.

混合物を室温で攪拌しながら、16時間反応させた。The mixture was allowed to react for 16 hours with stirring at room temperature.

反応後、得られた反応生成混合物に、室温で水50m/
を加え、水層と有機層とに分液した。有機層を無水硫酸
ナトリウムで乾燥した後、減圧下に濃縮して得た残渣に
エタノール50g/を加えて濾過L+  3.6−ジフ
ェニル−2−ヒドロキシ−ろ、4゜6.7−チトラヒド
ロー4.5.7−ドリオキソー5H−ピロロ(3,4−
d〕ピリミジンの結晶L41F(84%)を得た。
After the reaction, the resulting reaction product mixture was added with 50ml of water at room temperature.
was added, and the layers were separated into an aqueous layer and an organic layer. After drying the organic layer over anhydrous sodium sulfate, the organic layer was concentrated under reduced pressure, and 50 g of ethanol was added to the obtained residue, followed by filtration. 5.7-Dryoxo 5H-pyrrolo(3,4-
d] Pyrimidine crystals L41F (84%) were obtained.

実施例6 ろ−アミノー1−(P−トリル)−4−(P−トリルカ
ルバモイル)マレイミド3.35 fとピリジン1.9
4Fを含む塩化エチレン40w1lに、寒剤(氷−食塩
)冷却下、ホスゲン1.21を含む塩化エチレン20d
を滴下した後、混合物を室温で攪拌しながら、1日反応
させた。
Example 6 Ro-amino-1-(P-tolyl)-4-(P-tolylcarbamoyl)maleimide 3.35 f and pyridine 1.9
Add 20 d of ethylene chloride containing 1.21 phosgene to 40 w 1 l of ethylene chloride containing 4F under cooling with a cryogen (ice-salt).
was added dropwise, and the mixture was allowed to react for one day while stirring at room temperature.

反応後、得られた反応生成混合物に、室温で水25m/
を加え、濾過して、原料アミノマレイミドの結晶0.9
3fを回収した。F液を水層と有機層とに分液した。有
機層を無水硫酸ナトリウムで乾燥した後、減圧下に濃縮
して得た残渣に、ベンゼン25dを加えて濾過し、つい
でF果物を塩化エチレン3[1suで洗って、さらに原
料アミノマレイミドの結晶0.659を回収した。p液
と洗浄液を一緒にして、減圧下に濃縮した。残渣を、シ
リカゲル(ワコーゲルC−200,7or)を詰めたカ
ラム(直径25 rtrm )に通し、ベンゼンと酢酸
エチル、との混合溶媒で溶離した。まず容量用9:1の
混合溶媒500d、ついで容量比4:1の混合溶媒15
011Ieで溶出した後、容量比4:1の混合溶媒30
01で溶出して得た溶液を減圧下に濃縮して、3,6−
ジ(P−トリル)−2−ヒドロキシ−3,416,7−
チトラヒドロー41517−)ジオキソ−5H−ピロロ
[3,4−d]ピリミジンの結晶0、!l 49 (9
% )を得た。これをエタノールで再結晶して1分解点
276〜277℃の黄色微針状結晶を得た。
After the reaction, the resulting reaction product mixture was added with 25ml of water at room temperature.
was added, filtered, and crystals of raw material aminomaleimide 0.9
3f was collected. Solution F was separated into an aqueous layer and an organic layer. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. 25 d of benzene was added to the resulting residue, which was filtered. Then, the F fruit was washed with 3 [1 su of ethylene chloride, and then the raw material aminomaleimide crystals 0 .659 was recovered. The p solution and washing solution were combined and concentrated under reduced pressure. The residue was passed through a column (diameter 25 rtrm) packed with silica gel (Wako Gel C-200, 7or) and eluted with a mixed solvent of benzene and ethyl acetate. First, 500 d of 9:1 mixed solvent for volume, then 15 d of mixed solvent with 4:1 volume ratio.
After elution with 011Ie, a mixed solvent 30 with a volume ratio of 4:1 was added.
The solution obtained by elution with 01 was concentrated under reduced pressure to obtain 3,6-
Di(P-tolyl)-2-hydroxy-3,416,7-
Citrahydro 41517-) dioxo-5H-pyrrolo[3,4-d]pyrimidine crystals 0,! l 49 (9
%) was obtained. This was recrystallized from ethanol to obtain yellow fine needle crystals with a decomposition point of 276-277°C.

その元素分析値をつぎに示す。The elemental analysis values are shown below.

CHN 分析値  66.25 4.19  11.79計算値
  66.48 4.18  11.63(C20H1
5N3 o4とシテ) 実施例7 3−アミノ−1(2,4−ジクロロフェニル)−4−(
2,4−ジクロロフェニルカルノ(モイル)マレイミド
2.23SFとピリジン1.72を含む塩化エチレン2
0rttlに、寒剤(氷−食塩)冷却下、クロロギ酸ト
リクロロメチルエステル・LD6fを含む塩化エチレン
20m1を滴下した後、混合物を寒剤(氷−食塩)冷却
下で攪拌しながら、20時間反応させた。
CHN Analysis value 66.25 4.19 11.79 Calculated value 66.48 4.18 11.63 (C20H1
Example 7 3-amino-1(2,4-dichlorophenyl)-4-(
Ethylene chloride 2 containing 2,4-dichlorophenylcarno(moyl)maleimide 2.23 SF and pyridine 1.72
After dropping 20 ml of ethylene chloride containing chloroformic acid trichloromethyl ester/LD6f into 0rttl under cooling with a cryogen (ice-salt), the mixture was reacted for 20 hours while stirring under cooling with a cryogen (ice-salt).

反応後、得られた反応生成混合物に、寒剤(氷−食塩)
冷却下に水50m/を加え、水層と有機層とに分液した
。有機層を無水硫酸ナトリウムで乾燥した後、減圧下に
濃縮した。残渣を塩化エチレン5Oyttlで再結晶し
て、3,6−ビス(2,4−ジクロロフェニル)−2−
ヒドロキシ−3,4p6 +7−テトラヒドロー415
17  )ジオキン−5H−ピロロ(3,4−d、11
ピリミジンの淡黄色針状結晶0.72(30%2分解点
262〜264℃)を得た。その元素分析値をつぎに示
す。
After the reaction, a cooling agent (ice-salt) is added to the resulting reaction product mixture.
While cooling, 50 m/ml of water was added to separate the aqueous layer and the organic layer. The organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The residue was recrystallized with 5 Oyttl of ethylene chloride to give 3,6-bis(2,4-dichlorophenyl)-2-
Hydroxy-3,4p6 +7-tetrahydro415
17) Diochine-5H-pyrrolo (3,4-d, 11
0.72 pale yellow needle crystals of pyrimidine (30%2 decomposition point 262-264°C) were obtained. The elemental analysis values are shown below.

CHN     C1 分析値  45.93 1.78 8.67 29.9
9計算値  45J39 1.50 8.92’  3
0.10(Cx5Htct4Nsoaとして) 実施例8 3−アミノ−1−シクロへキシル−4−(シクロへキシ
ルカルバモイル)マレイミド2.72 f トピリ、ジ
ン3.37 Fを含む塩化エチレン70mに!寒剤(氷
−食塩)冷却下、クロロギ酸トリクロロメチルエステル
2.27fを含む塩化エチレン20rnlを滴下した後
、混合物を室温で攪拌しながら。
CHN C1 Analysis value 45.93 1.78 8.67 29.9
9 Calculated value 45J39 1.50 8.92' 3
0.10 (as Cx5Htct4Nsoa) Example 8 3-Amino-1-cyclohexyl-4-(cyclohexylcarbamoyl)maleimide 2.72 f Topyri, Jin 3.37 In 70 m of ethylene chloride containing F! After cooling with a cryogen (ice-salt), 20 rnl of ethylene chloride containing 2.27 f of chloroformic acid trichloromethyl ester was added dropwise, and the mixture was stirred at room temperature.

1日反応させた。It was allowed to react for one day.

反応後、得られた反応生成混合物に、室温で水50I+
/を加えて濾過しラ ろ、6−ジシクロへキシル−2−
ヒドロキシ−3,4,6,7−テトラ7、ヒ、ドロー4
15.7−ドリオキソー5H−ピロロ〔3,4−d)ピ
リミジンの結晶1.6sr+ 46%)を得た。P液を
水層と有機層とに分液し、有機層を無水硫酸ナトリウム
で乾燥した後、減圧下に濃縮した。残渣をジオ)サンで
再結晶して、さらべ目的物のピロロピリミジンをり ジ
オキサンとの付加物(モル比2:1)として得た。収量
o、s 1y (15%)。
After the reaction, the resulting reaction product mixture was added with 50 I+ of water at room temperature.
/ and filter, 6-dicyclohexyl-2-
Hydroxy-3,4,6,7-tetra7,hi,draw4
Crystals of 15.7-drioxo 5H-pyrrolo[3,4-d)pyrimidine (1.6sr+46%) were obtained. The P solution was separated into an aqueous layer and an organic layer, and the organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The residue was recrystallized with dioxane to obtain the desired pyrrolopyrimidine as an adduct with dioxane (molar ratio 2:1). Yield o, s 1y (15%).

分解点290℃。その元素分析値をつぎに示す。Decomposition point: 290°C. The elemental analysis values are shown below.

CHN 分析値  61.84 7.22  11.19計算値
  61.68  6.99  10.79(C10H
2S Na○4・+C,H802として)特許出願人 
宇部興産株式会社
CHN Analysis value 61.84 7.22 11.19 Calculated value 61.68 6.99 10.79 (C10H
2S Na○4・+C, H802) Patent applicant
Ube Industries Co., Ltd.

Claims (1)

【特許請求の範囲】 式 〔式中 R1は炭、素数1〜4のアルキル基・炭素数2
〜4のアルケニル基、炭素数5〜7のシフロアルキル基
、炭素数7〜10のアラルキル基、または(R2は炭素
数1〜4のアルキル基またはハロゲン原子を示し、nは
0.1.2または3である。)で表わされる基を示す。 〕で表わされるアミノマレイミド類と、ホスゲンまたは
クロロギ酸トリクロロメチルエステルとを、ピリジンの
、存在下に反応させることを特徴とする 式 (式中 R1は前記と同じ意味を有する。)で表わされ
るピロロピリミジン類の製造法。
[Claims] Formula [wherein R1 is carbon, an alkyl group with a prime number of 1 to 4, and a carbon number of 2]
~4 alkenyl group, cyfuroalkyl group having 5 to 7 carbon atoms, aralkyl group having 7 to 10 carbon atoms, or (R2 represents an alkyl group having 1 to 4 carbon atoms or a halogen atom, and n is 0.1.2 or 3) is shown. pyrrolo, which is characterized by reacting an aminomaleimide represented by ] with phosgene or chloroformic acid trichloromethyl ester in the presence of pyridine (wherein R1 has the same meaning as above). Method for producing pyrimidines.
JP15807481A 1981-10-06 1981-10-06 Preparation of pyrrolopyrimidine Granted JPS5859983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15807481A JPS5859983A (en) 1981-10-06 1981-10-06 Preparation of pyrrolopyrimidine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15807481A JPS5859983A (en) 1981-10-06 1981-10-06 Preparation of pyrrolopyrimidine

Publications (2)

Publication Number Publication Date
JPS5859983A true JPS5859983A (en) 1983-04-09
JPH0216309B2 JPH0216309B2 (en) 1990-04-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JPS5859983A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752725Y2 (en) * 1991-06-17 1995-12-06 北海道いす▲ず▼自動車株式会社 Bed heating system for horo type trucks

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