Using CCOC(C)=O, CCCCNC(=O)C=C1CCCc2sc(C(=O)O)cc21 to produce CCCCNC(=O)C=C1CCCc2sc(C(=O)OC)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.