Using COC(=O)C1CCC(COc2ccc(C=C3SC(=O)NC3=O)cc2)CC1 to produce O=C1NC(=O)/C(=C/c2ccc(OCC3CCC(C(=O)O)CC3)cc2)S1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.