Patent attributes
The invention relates to new phthalazine derivatives of formula (I), wherein R1 and R2: a) are independently in each case a lower alkyl; b) together form a bridge of subformula (I*), wherein the bond is achieved via the two terminal C atoms and m is 0 to 4; or c) together form a bridge of subformula (I**), wherein one or two of the ring members T1, T2, T3 and T4 are nitrogen, and the others are in each case CH, and the bond is achieved via atoms T1 and T4; A, B, D, E and T are independently N or CH subject to the proviso that at least one and not more than three of these radicals are N; X is imino, oxa, or thia; Y is hydrogen, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or unsubstituted or substituted cycloalkyl; and wherein the bonds characterized in subformula (I*) by a wavy line are either single or double bonds; to an N-oxide of a compound of formula I; a tautomer or mixture of tautomers of a compound of formula (I) of an N-oxide thereof; and a pharmaceutically acceptable salt of a compound of formula (I), of an N-oxide or of a tautomer or mixture of tautomers thereof; processes for their preparation and pharmaceutical uses.
