S(CCOC(=O)CCC(=O)O)C1=C2NC(=O)C(C)=CC=CC(C)C(O)C(C)C(O)C(C)C(OC(=O)C)C(C)C(OC)C=COC3(C)Oc4c(C)c(O)c(C2=O)c(C1=O)c4C3=O