主权项 |
1. A compound of the general formula (I): wherein: each of R1-R8 is independently selected from the group consisting of H, OH, SH, halogen, nitro, amino, nitrilo, nitroso, acetyl, acetamido, acylamido, alkylamino, straight or branched C1-C5 alkyl, straight or branched C1-C5 alkenyl, straight or branched C1-C5 alkynyl, amine, straight or branched C1-C5 alkoxy, straight or branched C1-C5 carboxyl, straight or branched C1-C5 ester, straight or branched C1-C5 thioxy, straight or branched C1-C5 sulfinyl and straight or branched C1-C5 thionyl; R9 is selected from the group consisting of straight or branched C1-C9 alkyl, straight or branched C1-C9 alkenyl, straight or branched C1-C9 alkynyl, piperazinyl, pyridinyl, piperidinyl, morpholinyl and thiomorpholinyl each being substituted with at least one quarternary amino group; at least one of R1-R4 is a halogen or nitro, and at least one of R5-R8 is a halogen or nitro; or at least one of R1-R4 or at least one of R5-R8 is OH; X is selected from the group consisting of CH, N and P; andY is null. |