Using CCOC(=O)c1cnc(CN2C(=O)c3ccccc3C2=O)c2c(OC)cc(OC)cc12 to produce COc1cc(OC)c2c(CN3C(=O)c4ccccc4C3=O)ncc(C(=O)O)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.