发明名称 |
METHOD FOR PRODUCING AN OPTICALLY ACTIVE TETRAHYDROQUINOLINE |
摘要 |
The present invention provides an industrially advantageous production method of optically active tetrahydroquinolines of formula (1), which comprises: 1) a step of reacting a beta-ketoester of formula (2) with an amine of formula (3) to produce an enaminoester of formula (4); 2) a step of subjecting the enaminoester of formula (4) above obtained in 1) to asymmetric hydrogenation to produce an optically active beta-amino acid derivative of formula (5); 3) a step of amidating the optically active beta-amino acid derivative (5) above obtained in 2) to produce an amide of formula (6); 4) a step of alkoxycarbonylating the amide of formula (6) above obtained in 3) to produce a compound of formula (7); and 5) a step of subjecting the compound of formula (7) above to cyclization to produce the optically active tetrahydroquinoline of formula (1).
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申请公布号 |
US2010036149(A1) |
申请公布日期 |
2010.02.11 |
申请号 |
US20090550948 |
申请日期 |
2009.08.31 |
申请人 |
TAKASAGO INTERNATIONAL COPORATION |
发明人 |
MOROI TAKASHI;SOTOGUCHI TSUKASA;MATSUMURA KAZUHIKO;TAKENAKA MOTONOBU;KURIYAMA WATARU;MURAYAMA TOSHIYUKI;NARA HIDEKI;YOKOZAWA TOHRU;YAGI KENJI |
分类号 |
C07C227/16;C07C211/49;C07C229/18;C07C229/30;C07D215/42 |
主分类号 |
C07C227/16 |
代理机构 |
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