Patent ID: 6670493
Filing Date: 2003-12-30
Classification: A61P,C07J

Abstract:
A compound of formula (I): wherein R6 and R7 are each, independently of each other, a hydrogen atom or a halogen atom in an &agr; or &bgr; position, or a C1- to C6-alkyl group in the &agr; or &bgr; position;R11 is a hydrogen atom, a C1- to C6-alkyl group, a C1- to C6-acyl group, a â€”CONHR21 group, a â€”COSR22 group or a â€”COOR22 group, in which R21 and R22 are each, independently of each other, a C1- to C6-alkyl group or an unsubstituted or substituted C6- to C10-aryl group; R13 is a methyl or ethyl group; R17 is a hydrogen atom, a C1- to C6-alkyl group or a C1- to C6-acyl group; and R20 is a hydrogen atom, a C1- to C6-alkyl group or an unsubstituted or substituted C6- to C12-aryl group.