9-aminoacridine derivates and process for the preparation thereof

摘要

The present invention relates to new 9-aminoacridine derivatives of general formula (I), wherein A is hydrdogen or (II) (wherein X is oxygen or sulfur, R1, R2, R3, R4 and R5 are independently ydrogen, halogen, nitro, amino, hydroxy, C1-C4 lower alkylhydroxy, C1-C4 lower alkylamino, C1-C8 alkyl, C1-C4 lower alkoxy or C1-C4 lower alkyloxycarbonyl and m and n are independently an integer of 0, 1 or 2) , R6, R7, R8 and Rg are independently hydrogen, C1-C8 alkyl or C1-C4 lower alkoxy, and Y is -N=CHR' (wherein R' is hydrogen, benzyl, C1-C8 alkyl or C1-C6 lower alkylamino), (III) (wherein R" is hydrogen, benzyl, C1-C8 alkyl or C1-C6 lower alkylamino, and R''' is hydrogen, benzyl, C1-C8 alkyl or amino protecting group) or (IV) (wherein, X is as defined above, R1', R2', R3', R4' and R5' are independently hydrogen, halogen, nitro, amino, hydroxy, C1-C4 lower alkylhydroxy, C1-C4 lower alkylamino, C1-C8 alkyl, C1-C4 lower alkoxy or C1-C4 lower alkylcarboxy, and q and r are independently an integer of 0, 1 or 2) or its pharmaceutically acceptable salt, and process for the preparation thereof.