Patent ID: 6589963
Filing Date: 2003-07-08
Classification: A61P,C07D

Abstract:
A heterocyclic compound of the formula [I]: whereinR1 is hydrogen atom or lower alkyl, R2 is alkyl optionally having a substituent, cycloalkyl, cycloalkylalkyl, aryl optionally having a substituent, arylalkyl optionally having a substituent, alkenyl optionally having a substituent, alkynyl optionally having a substituent, heterocyclic alkyl optionally having a substituent or â€”COR4 â€ƒwherein R4 is C4-8 alkyl optionally having a substituent, or alkenyl optionally having a substituent, R3 is hydrogen atom, lower alkyl or lower alkoxy, A is a single bond or >Nâ€”R5 â€ƒwherein R5 is hydrogen atom or lower alkyl, B is lower alkylene, and Y is an aromatic heterocyclic residue optionally having a substituent, or a pharmaceutically acceptable salt thereof.