共 50 条
SYNTHETIC STUDIES OF CARBAPENEM AND PENEM ANTIBIOTICS .3. A SYNTHESIS OF A KEY INTERMEDIATE FOR 1-BETA-METHYLCARBAPENEM
被引:0
|作者:
SASAKI, A
[1
]
MATSUMURA, H
[1
]
YANO, T
[1
]
TAKATA, S
[1
]
SUNAGAWA, M
[1
]
机构:
[1] SUMITOMO PHARMACEUT CO LTD, RES LABS, 3-1-98 KASUGADE NAKA, KONOHANA KU, OSAKA 554, JAPAN
关键词:
1-ALPHA-METHYLCARBAPENEM;
1-BETA-METHYLCARBAPENEM;
(3S;
4S)-4-[(R)-1-CARBOXYETHYL]-3-[(R)-1-HYDROXYETHYL]-2-AZETIDINONE;
STEREOSELECTIVE HYDROGENATION;
STEREOSELECTIVE HYDROBORATION;
D O I:
暂无
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
We synthesized useful intermediates 5 and 6 for 1-beta- and 1-alpha-methylcarbapenems from 4-carboxy-3-[(R)-1-hydroxyethyl]-2-azetidinone 4 as a starting material by using stereoselective hydrogenation and hydroboration, respectively. A practical synthetic route from 4 to the (3S,4S)4-[(R)-1-carboxyethyl]-3-[(R)-1-hydroxyethyl]-2-azetidinone derivative 1, a useful intermediate for the synthesis of 1-beta-methylcarbapenem antibiotics, was established.
引用
收藏
页码:1098 / 1104
页数:7
相关论文