Patent ID: 7307170

Claim:
An Epindolidione compound of the formula (I) in which the nucleus designated A represents an annelated heteroaromatic ring system comprising an annelated ring which is fused on linearly, in 2,3-position, or angularly, in 1,2- or in 3,4-position, to feature the complementary member of moiety (1) wherein R 3 and R 4 are, independently, hydrogen, C 1-8 alkyl, C 5-6 cycloalkyl, benzyl, benzanilide or naphthyl whereby phenyl groups can be mono- or poly-substituted by radicals selected from the group consisting of halogen, nitro groups, C 1-8 alkyl, phenyl, —COOR, with R being C 1-8 alkyl and C 1-2 alkoxy; or R 3 and/or R 4 are a radical of formula (a) the nucleus A′ represents a substituted or unsubstituted aromatic ring or an annelated heteroaromatic ring system comprising an annelated ring which is fused on linearly, in 2,3-position, or angularly, in 1,2- or in 3,4-position, to feature the complementary members of the moiety (12) wherein R′ 3 and R′ 4 are, independently, hydrogen, C 1-8 alkyl, C 5-6 cycloalkyl, benzyl, benzanilide or naphthyl whereby phenyl groups can be mono- or poly-substituted by radicals selected from the group consisting of halogen, nitro groups, C 1-8 alkyl, phenyl, —COOR with R being C 1-8 alkyl and C 1-2 alkoxy, and R 2 is hydrogen, C 1-12 alkyl or phenyl or —COOR, with R being C 1-8 alkyl.