COC1/C=C/OC2(C)Oc3c(C)c(O)c4c(c3C2=O)C(=O)C(S(=O)(=O)O)=C(NC(=O)/C(C)=C\C=C\C(C)C(O)C(C)C(O)C(C)C(OC(C)=O)C1C)C4=O    mol37915