发明名称 |
PROCESS FOR PREPARATION OF OPTICALLY ACTIVE N-SUBSTITUTED AZETIDINE-2-CARBOXYLIC ACIDS |
摘要 |
<p>A process for preparing optically active N-substituted azetidine-2-carboxylic acids of the general formula (2) efficiently, simply, easily and industrially advantageously by subjecting an optically active 4-(substituted amino)-2= halogenobutyric acid of the general formula (1) to cyclization in the presence of a base; and novel compounds of the general formula (3) wherein R is a substituted oxycarbonyl type protective group or a substituted sulfonyl type protective group; X is halogeno; and * represents an asymmetric carbon atom.</p> |
申请公布号 |
WO0155104(A1) |
申请公布日期 |
2001.08.02 |
申请号 |
WO2001JP00469 |
申请日期 |
2001.01.25 |
申请人 |
KANEKA CORPORATION;NAGASHIMA, NOBUO |
发明人 |
NAGASHIMA, NOBUO |
分类号 |
C07C271/22;C07C303/38;C07C311/19;C07D205/04;(IPC1-7):C07D205/04;C07C269/04 |
主分类号 |
C07C271/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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