Patent ID: 6518424
Filing Date: 2003-02-11
Classification: A61P,C07D

Abstract:
A compound having the formula: wherein,R1 is a member selected from the group consisting of C1-C6 alkyl, substituted C1-C6 alkyl, C1-C6 alkoxy, substituted C1-C6 alkoxy, C1-C6 cycloalkyl, substituted C3â€”C6 cycloalkyl, and halogen; R2 is a member selected from the group consisting of phenyl, substituted phenyl, benzyl, substituted benzyl, C3-C7 cycloalkyl, and substituted C3-C7 cycloalkyl; R3 is a member selected from the group consisting of hydrogen and C1-C6 alkyl; R4 is a member selected from the group consisting of â€”H, â€”OH, â€”N3 and â€”NHCOCH3; and pharmaceutically acceptable salts thereof.