CPC C07D 209/16 (2013.01) | 12 Claims |
1. A chemical compound or salt thereof having formula (I):
wherein, R6, is a prenyl group, and wherein R4, R5, and R7 are a hydrogen atom, wherein R1 is a hydrogen atom, and R2 is a hydrogen atom or an alkyl group, and wherein R3a is a hydrogen atom, and R3b is an acyl group and R3c is a hydrogen atom or a carboxy group.
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