Patent ID: 6255517
Filing Date: 2001-07-03
Classification: A61P,C07C

Abstract:
A thymol derivative represented by following ##STR12##wherein, R.sub.1 is a hydroxyl group which may be protected with a acetyl group or isobutyryl group; R.sub.2 represents methanesulfonyl, 4-methoxybenzenesulfonyl, 4-nitrobenzenesulfonyl, 4-fluorobenzenesulfonyl, o-toluenesulfonyl, 2-nitro-o-toluenesulfonyl or p-toluenesulfonyl; R.sub.3 and R.sub.4 together forms an olefin; and R.sub.5 represents a methyl group; and pharmaceutically acceptable salts and esters thereof.