| abstract |
A compound of the formula IV-P ** (See formula) ** in which L is absent or selected from the group consisting of optionally substituted linear or branched C1-10 alkyl, optionally substituted C2-10 alkenyl, alkynyl Optionally substituted C2-10, C1-10 alkylamine, C1-10 alkoxy, C2-10 alkynyloxy, C2-10 alkynyloxy, C1-10 alkoxycarbonyl, C2-10 alkenyloxycarbonyl, C2-10 alkynyloxy; and A is selected from the group consisting of -C (O) -OR1, -OP (O) OR2OR2, -P (O) OR2OR2, -SO2OR2, SO3H, OSO3H, and PO3H; where R1 and R2 are independently selected from the group consisting of H, M, C1-15 alkyl, C3-8 cycloalkyl, aryl, and R1.2 where R1.2 is R '' - OC (O) -R '' '' , R '' - OC (O) -O-R '' '', R '' - C (O) -O-R '' '', where R '' and R '' '' are independently selected from the group consisting of C1-15 alkyl, C3-8 cycloalkyl and aryl; R 13 is selected from the group consisting of H, halogen, NH2, and C1-6 alkyl; and R16 is selected from the group consisting of H, halogen, OH, O-C1-6 alkyl, and C1-6 alkyl. |