COC(=O)CCC1=C(CC(=O)OC)c2cc3[nH]c(cc4nc(cc5[nH]c(cc1n2)c(CC(=O)OC)c5CCC(=O)OC)C(CC(=O)OC)=C4CCC(=O)OC)c(CC(=O)OC)c3CCC(=O)OC    mol34013