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Asymmetric synthesis of (+)-(11R,12S)-mefloquine hydrochloride
被引:21
|作者:
Xie Zhi-Xiang
[1
]
Zhang Lu-Zhong
[1
]
Ren Xiao-Juan
[1
]
Tang Shi-Yang
[1
]
Li Yang
[1
]
机构:
[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
关键词:
mefloquine;
antimalarial drug;
proline-catalyzed;
Beckmann rearrangement;
asymmetric synthesis;
D O I:
10.1002/cjoc.200890231
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The asymmetric synthesis of (+)-(11R,12S)-mefloquine hydrochloride, an antimalarial drug, was accomplished from commercially available 2-trifluoromethylaniline, ethyl 4,4,4-trifluoroacetoacetate and cyclopentanone in 7 steps with a 14% overall yield. The key steps were proline-catalyzed asymmetric direct aldol reaction and Beckmann rearrangement. The absolute configuration was assigned by a Mosher's method.
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页码:1272 / 1276
页数:5
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