Patent ID: 6656953
Filing Date: 2003-12-02
Classification: C07D

Abstract:
A compound represented by A: whereinR represents H, alkyl, aralkyl, cycloalkyl, alkenyl, aryl, acyl, or sulfonyl; R1 represents carbocyclic aryl; R2 represents RO-alkyl, (R)2N-alkyl, RS-alkyl, RO-cycloalkyl, (R)2N-cycloalkyl, or RS-cycloalkyl; R3 and R4 independently represents alkyl, cycloalkyl, or aryl, wherein R3 and R4 are connected through a covalent bond to form a ring; R5 represents an aryl or thiophenyl group; n is 0, 1, or 2; and the stereochemical configuration at any stereocenter of a compound represented by A is R, S, or a mixture of these configurations.