CPC C07F 9/094 (2013.01) | 13 Claims |
1. A compound of formula (I):
wherein
R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 are each independently selected from: —H, —(C1-C12)-alkyl, —O—(C1-C12)-alkyl or —(C4-C12)-aryl, and the radicals R1, R2, R3, R4, and also the radicals R6, R7, R8, R9, R10, may form fused systems with one another.
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