Using COc1ccc2c(c1CC#N)Oc1c(ccc(OC)c1CN1C(=O)c3ccccc3C1=O)N2C to produce COc1ccc2c(c1CN)Oc1c(ccc(OC)c1CC#N)N2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.