Using CCOC(OCC)OC(C)=O, CC(C)(C)Nc1c(N)c2nnnn2c2ccccc12 to produce CC(C)(C)n1cnc2c1c1ccccc1n1nnnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.