The present invention provides a method for easily producing an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative useful for an intermediate for pharmaceutical products, particularly an inhibitor of a cholesteryl ester transfer protein (CETP) from easily available raw materials.
In the present invention, (S)-N-[4-(trifluoromethyl)phenyl]-3-hydroxypentanoic acid amide prepared from easily available raw materials leads a production of (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone to give (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide. Furthermore, (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone is reacted with a carbamic acid ester to give an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative.
[EN] COMPOUNDS USEFUL AS INTERMEDIATES<br/>[FR] COMPOSES UTILES COMME INTERMEDIAIRES
申请人:PFIZER PROD INC
公开号:WO2002088069A2
公开(公告)日:2002-11-07
This invention relates compounds of formulae Wherein A is CN,CONH2 OR CONHCOOR, R being methyl or optionally substituted benzyl, useful as intermediates for cholesteryl ester transfer protein (CETP) inhibitors and methods for the preparation thereof.
[EN] METHODS FOR PREPARING CETP INHIBITORS<br/>[FR] PROCEDES POUR PREPARER DES INHIBITEURS DE CETP
申请人:PFIZER PROD INC
公开号:WO2002088085A2
公开(公告)日:2002-11-07
This invention relates to methods for preparing certain cholesteryl ester transfer protein (CETP) inhibitors IA or IB and intermediates related thereto.
本发明涉及制备某些胆固醇酯转移蛋白(CETP)抑制剂IA或IB及其相关中间体的方法。
Method for producing an optically active tetrahydroquinoline
申请人:Moroi Takashi
公开号:US20060122225A1
公开(公告)日:2006-06-08
The present invention provides an industrially advantageous production method of optically active tetrahydroquinolines of formula (1),
which comprises:
1) a step of reacting a β-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 β-amino acid derivative of formula (5);
3) a step of amidating the optically active β-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).
METHOD FOR PRODUCING AN OPTICALLY ACTIVE TETRAHYDROQUINOLINE
申请人:Moroi Takashi
公开号:US20100036149A1
公开(公告)日:2010-02-11
The present invention provides an industrially advantageous production method of optically active tetrahydroquinolines of formula (1),
which comprises:
1) a step of reacting a β-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 β-amino acid derivative of formula (5);
3) a step of amidating the optically active β-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).