Pyrimidylamino-benzamide derivatives for the treatment of neuro-fibromatosis

摘要

1. A method for the treatment or prevention of benign brain tumors, which consists in the fact that the patient is administered pyrimidylaminobenzamide derivatives of the formula (I),! ! where R1 is hydrogen, (ness.) alkyl, (ness.) alkoxy (ness.) alkyl, acyloxy (ness.) alkyl, carboxy (ness.) alkyl, (ness.) alkoxycarbonyl (ness.) alkyl or phenyl (ness. .) alkyl,! R2 is hydrogen, lower alkyl optionally substituted with one or more, same or different radicals R3, cycloalkyl, benzocycloalkyl, heterocyclyl, an aryl group or a mono- or bicyclic heteroaryl group containing 0, 1, 2 or 3 cyclic nitrogen atoms and 0 or 1 oxygen atom and 0 or 1 sulfur atom, and these groups in each case are unsubstituted or mono- or polysubstituted, and! R3 is hydroxy, (ness.) Alkoxy, acyloxy, carboxy, (ness.) Alkoxycarbonyl, carbamoyl, N-mono- or N, N-disubstituted carbamoyl, amino, mono- or disubstituted amino, cycloalkyl, heterocyclyl, an aryl group or mono - or a bicyclic heteroaryl group containing 0, 1, 2 or 3 cyclic nitrogen atoms and 0 or 1 oxygen atom and 0 or 1 sulfur atom, and these groups in each case are unsubstituted or mono- or polysubstituted, or! R1 and R2 together mean alkylene containing 4, 5 or 6 carbon atoms, optionally mono- or disubstituted by a group of lower alkyl, cycloalkyl, heterocyclyl, phenyl, hydroxy, lower alkoxy, amino, mono- or disubstituted amino, oxo, pyridyl, pyrazinyl or pyrimidinyl, or mean benzalkylene containing 4 or 5 carbon atoms, oxaalkylene containing 1 oxygen atom and 3 or 4 carbon atoms, or azaalkylene containing 1 nitrogen atom and 3 or 4 carbon atoms, and the nitrogen atom is unsubstituted or is substituted by a group (neither