共 50 条
A SIMPLE AND HIGHLY DIASTEREOSELECTIVE SYNTHESIS OF A 1-BETA-METHYLCARBAPENEM KEY INTERMEDIATE BY DEALLYLOXYCARBONYLATION USING PALLADIUM COMPLEXES
被引:26
作者:
MURAYAMA, T
[1
]
YOSHIDA, A
[1
]
KOBAYASHI, T
[1
]
MIURA, T
[1
]
机构:
[1] TAKASAGO INT CORP,CENT RES LAB,HIRATSUKA 254,KANAGAWA,JAPAN
关键词:
D O I:
10.1016/0040-4039(94)85196-4
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A Simple, highly diastereoselective synthesis of the key 1 beta-methylcarbapenem intermediate 1 has been accomplished via a palladium catalyzed deallyloxycarbonylation of diallyl malonate derivative 4a which was readily prepared from (3S,4R)-4-acetoxy-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidimone 2 in two steps.
引用
收藏
页码:2271 / 2274
页数:4
相关论文
共 50 条