Using CCOC(=O)Cc1ccncc1, O=Cc1sc2cc3c(cc2c1Oc1ccc(Cl)cc1)OCO3 to produce CCOC(=O)/C(=C/c1sc2cc3c(cc2c1Oc1ccc(Cl)cc1)OCO3)c1ccncc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.