Patent ID: 6599940
Filing Date: 2003-07-29
Classification: C07B,C07C,C07D

Abstract:
A compound represented by A: wherein X represents independently for each occurrence O, NR, or S; R represents independently for each occurrence H, alkyl, cycloalkyl, aryl, heteroaryl, aralkyl, or heteroaralkyl; Râ€² represents independently for each occurrence H, alkyl, cycloalkyl, aryl, heteroaryl, aralkyl, heteroaralkyl, formyl, acyl, alkoxycarbonyl, aryloxycarbonyl, aralkoxycarbonyl, or R2NC(O)â€”; Râ€³ represents independently for each occurrence H, cycloalkyl, aryl, heteroaryl, aralkyl, heteroaralkyl, formyl, acyl, alkoxycarbonyl, aryloxycarbonyl, aralkoxycarbonyl, or R2NC(O)â€”; Rb represents independently for each occurrence H, alkyl, cycloalkyl, aryl, heteroaryl, aralkyl, or heteroaralkyl; Rc represents independently for each occurrence H, alkyl, cycloalkyl, aryl, heteroaryl, aralkyl, or heteroaralkyl; and the stereochemical configuration at a stereocenter of a compound represented by A is R, S, or a mixture of these configurations.