Using COC(=O)c1ccc(OCCOc2ccc(CC3SC(=O)NC3=O)cc2)cc1 to produce O=C1NC(=O)C(Cc2ccc(OCCOc3ccc(C(=O)O)cc3)cc2)S1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.