| 摘要 |
A pharmaceutical composition for treating a transient ischemic attack which comprises a compound of formula (I), wherein R1 is a pyridyl group, R2 is a phenyl, thienyl, furyl, naphthyl, benzothienyl or pyridyl group, which may be substituted with a lower alkoxy group, a lower alkyl group, a halogen atom, trifluoromethyl group, a lower alkenyl group or/and methylenedioxy group, R3 is hydrogen atom or a lower alkyl group, and l is an integer of 0 to 6, Y is sulfur atom, methylene group or a group of formula (a), wherein R4 is hydrogen atom or acetyl group, and m is 0 or 1, or a pharmaceutically acceptable salt.
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