CC1OC(=O)C(NC(=O)CNC(=O)C2=CC=CC(O)=C2O)C(C)OC(=O)C(NC(=O)CNC(=O)C2=CC=CC(O)=C2O)C(C)OC(=O)C1NC(=O)CNC(=O)C1=CC=CC(O)=C1O