Patent ID: 6583321
Filing Date: 2003-06-24
Classification: A61P,C07C

Abstract:
A compound of formula 1 and its pharmaceutically acceptable salts: Wherein, R1 and R2are respectively a hydrogen; C1-C4-alkyl substituted or not substituted by halogens; C3-C7-cycloalkyl; C1-C5-alkyl containing 1Ëœ3 ether bonds and/or an aryl substitute; substituted or not substituted phenyl; or substituted or not substituted five or six ring-cycled heteroaryl containing more than one hetero atoms selected from a group consisting of nitrogen, sulfur and oxygen (wherein, phenyl or heteroaryl can be one- or multi-substituted by a substituent selected from a group consisting of hydrogen, methyl, ethyl and isopropyl).