O1C(C=CC)C(C)C(OC2CC(O)C(OC(=O)N)C(C)O2)CC1(OC)C(C)C(O)C(C)C3OC(=O)C(OC)=CC(C)=CC(C)C(O)C(C)C(O)C(C)CC(C)=CC=CC3OC