Using CCOC(=O)C1Cc2ccccc2N1C(=O)c1c(O)c2cc(OC)cc3c2n(c1=O)CCO3 to produce COc1cc2c3c(c1)c(O)c(C(=O)N1c4ccccc4CC1C(=O)O)c(=O)n3CCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.