Patent ID: 6472384
Filing Date: 2002-10-29
Classification: A61P,C07H,C12P,Y02P

Abstract:
A compound of formula (I) or a pharmaceutically acceptable salt thereof: wherein:R1 is a methyl group, R2 is a methyl group, R4 is a hydroxy group, and X is a methylene group; R1 is a methyl group, R2 is a hydrogen atom, R4 is a hydroxy group, and X is a methylene group; R1 is a methyl group, R2 is a methyl group, R4 is a hydrogen atom, and X is a methylene group; R1 is a hydrogen atom, R2 is a hydrogen atom, R4 is a hydroxy group, and X is a methylene group; or R1 is a methyl group, R2 is a methyl group, R4 is a hydroxy group, and X is a sulfur atom.