Using CCOC(=O)C(C(=O)OCC)c1ccccc1, CC(C)c1nc(N)n[nH]1 to produce CC(C)c1nc2nc(O)c(-c3ccccc3)c(O)n2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.