Patent Document ID: 20030045575
Application ID: 10206765
Patent Flag: 0

Claim One:
1. A method for protecting central neurons from acute or chronic injuries to the central nervous system (CNS) comprising administering to a patient or a mammal a therapeutically appropriate amount of one or more compounds represented by the following formula (I) or pharmaceutically acceptable salts thereof: 6 X is CO, SO 2 or (CH 2 )n, wherein n is an integer of 1 to 5; R 1 is hydrogen, alkyl or alkanoyl; R 2 is hydrogen or alkyl; R 3 is hydrogen or an acetoxy group; and R 4 is phenyl group which is unsubstituted or substituted with one or more of the group consisting of nitro, halogen, haloalkyl, and C 1 -C 5 alkoxy.