JP2007063147A - N−カルボン酸無水物の製造方法 - Google Patents
N−カルボン酸無水物の製造方法 Download PDFInfo
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Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
Description
以下に本発明の実施例を説明するが、本発明は下記実施例に限定されるものではない。
300mlの4ツ口フラスコにN−(1−エトキシカルボニル−3−フェニルプロピル)アラニン(EPAL)14.0g(0.05mol)とシクロペンチルメチルエーテル(CPME)120.6g(140ml)を加え、系内を窒素置換した後撹拌し懸濁させた。懸濁液を40℃に加熱し、12.4g(0.125mol、2.5倍モル)のジホスゲンを3時間かけて滴下した。滴下終了後3時間撹拌を続け、その後、過剰のホスゲンを窒素抜気により除去した。減圧蒸留によりCPMEを97g留去し、濃縮液を5℃に冷却した。結晶化したEPAL−NCAをろ過により単離し、減圧乾燥後12.1g(収率79%)のEPAL−NCAを得た。HPLCによる分析の結果、純度は99.6%であった。
N−(1−エトキシカルボニル−3−フェニルプロピル)アラニンのN−カルボニル酸無水物(EPAL−NCA)の製造
300mlの4ツ口フラスコにN−(1−エトキシカルボニル−3−フェニルプロピル)アラニン(EPAL)14.0g(0.05mol)と酢酸エチル120.6g(140ml)を加え、系内を窒素置換した後撹拌し懸濁させた。懸濁液を40℃に加熱し、12.4g(0.125mol、2.5倍モル)のジホスゲンを3時間かけて滴下した。滴下終了後7時間撹拌を続け、その後、過剰のホスゲンを窒素通気により抜気した。減圧蒸留により酢酸エチルを101.6g留去し、n−ヘキサン49gを加えてEPAL−NCAを結晶化させた。その後、ろ過により単離し、減圧乾燥後10.7g(収率70%)のEPAL−NCAを得た。HPLCによる分析の結果、純度は99.0%であった。
300mlの4ツ口フラスコにN−トリフルオロアセチルリシン(TFA−Lys) 24.2g(0.1mol)とシクロペンチルメチルエーテル(CPME)266.2gを加え、系内を窒素置換した後撹拌し懸濁させた。懸濁液を40℃に加熱し、24.8g(0.25mol、2.5倍モル)のジホスゲンを滴下した。滴下終了後6時間撹拌を続け、その後、過剰のホスゲンを窒素抜気により除去した。減圧蒸留によりCPMEを213g留去し、濃縮液を5℃に冷却した。結晶化したTFA−Lys−NCAをろ過により単離し、減圧乾燥後15g(収率56%)のTFA−Lys−NCAを得た。HPLCによる分析の結果、純度は95%であった。
Claims (4)
- 前記したアミノ酸またはアミノ酸の塩のアミノ酸部分が一般式[2]で表される構造を有しており、反応生成物である前記したN−カルボン酸無水物が一般式[3]で表される構造を有していることを特徴とする請求項1記載のN−カルボン酸無水物の製造方法。
(式中、R1、R2はそれぞれ独立して水素原子、アルキル基、1カ所以上が置換されたアルキル基、シクロアルキル基、1カ所以上が置換されたシクロアルキル基、アリール基、1カ所以上が置換されたアリール基、複素環基、1カ所以上が置換された複素環基を表し、R1およびR2が結合してシクロアルキル基を形成してもよく、さらに縮合環として芳香環または複素環を有してもよい。R3は水素原子、アルキル基、1カ所以上が置換されたアルキル基、シクロアルキル基、1カ所以上が置換されたシクロアルキル基、アリール基、1カ所以上が置換されたアリール基、複素環基、1カ所以上が置換された複素環基を表す。)
(式中、R1、R2、R3は前記した一般式[2]におけるR1、R2、R3と同一である。) - 一般式[1]で表されるエーテル化合物がシクロペンチルメチルエーテルである請求項1または請求項2記載のN−カルボン酸無水物の製造方法。
- 前記したアミノ酸またはアミノ酸の塩のアミノ酸部分が、N−(1−エトキシカルボニル−3−フェニルプロピル)アラニン(EPAL)である請求項1〜3いずれかの項に記載のN−カルボン酸無水物の製造方法。
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JP2021529211A (ja) * | 2018-09-28 | 2021-10-28 | ロンザ リミテッドLonza Limited | N−カルボキシ無水物の作製方法 |
CN114642681A (zh) * | 2022-03-18 | 2022-06-21 | 中国科学院长春应用化学研究所 | 一种聚合物在顺铂解毒中的应用 |
Citations (3)
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JPS5273888A (en) * | 1975-12-17 | 1977-06-21 | Ajinomoto Co Inc | Preparation of gamma-glutamic acid-n-carboxylic acid |
US4686295A (en) * | 1982-03-10 | 1987-08-11 | Usv Pharmaceutical Corporation | N-carboxy anhydride intermediates |
WO2001087858A1 (fr) * | 2000-05-15 | 2001-11-22 | Kaneka Corporation | Procedes de cristallisation d'un n-carboxyanhydride de n-(1(s)-ethoxycarbonyl-3-phenylpropyl)-l-alanine |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5273888A (en) * | 1975-12-17 | 1977-06-21 | Ajinomoto Co Inc | Preparation of gamma-glutamic acid-n-carboxylic acid |
US4686295A (en) * | 1982-03-10 | 1987-08-11 | Usv Pharmaceutical Corporation | N-carboxy anhydride intermediates |
WO2001087858A1 (fr) * | 2000-05-15 | 2001-11-22 | Kaneka Corporation | Procedes de cristallisation d'un n-carboxyanhydride de n-(1(s)-ethoxycarbonyl-3-phenylpropyl)-l-alanine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2021529211A (ja) * | 2018-09-28 | 2021-10-28 | ロンザ リミテッドLonza Limited | N−カルボキシ無水物の作製方法 |
JP7042969B2 (ja) | 2018-09-28 | 2022-03-28 | ロンザ リミテッド | N-カルボキシ無水物の作製方法 |
CN114642681A (zh) * | 2022-03-18 | 2022-06-21 | 中国科学院长春应用化学研究所 | 一种聚合物在顺铂解毒中的应用 |
CN114642681B (zh) * | 2022-03-18 | 2023-08-29 | 中国科学院长春应用化学研究所 | 一种聚合物在顺铂解毒中的应用 |
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