An enantioselective synthesis of (S)-(+)-3-aminomethyl-5-methylhexanoic acid via asymmetric hydrogenation

被引:97
作者
Burk, MJ
de Koning, PD
Grote, TM
Hoekstra, MS
Hoge, G
Jennings, RA
Kissel, WS
Le, TV
Lennon, IC
Mulhern, TA
Ramsden, JA
Wade, RA
机构
[1] Chirotech Technol Ltd, Dowpharma, Cambridge CB4 0WG, England
[2] Pfizer Inc, Pfizer Global Res & Dev, Holland, MI 49424 USA
[3] Pfizer Inc, Pfizer Global Res & Dev, Ann Arbor, MI 48105 USA
关键词
D O I
10.1021/jo034397b
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A concise enantioselective synthesis of (S)-(+)-3-aminomethyl-5-methylhexanoic acid (1, Pregabalin) has been developed. The key step is the asymmetric hydrogenation of a 3-cyano-5-methylhex-3-enoic acid salt 2 with a rhodium Me-DuPHOS catalyst, providing the desired (S)3-cyano-5-methylhexanoate 3 in very high ee. Subsequent hydrogenation of the nitrile 3 with a heterogeneous nickel catalyst provides Pregabalin 1 in excellent overall yield and purity.
引用
收藏
页码:5731 / 5734
页数:4
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