Using COC(=O)c1nc(N)c2c(n1)N(Cc1ccccc1)C(OC)N2 to produce COC1Nc2c(N)nc(C(=O)O)nc2N1Cc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.