Using CCOC(OCC)c1cn(-c2ccc(Cc3c(CC)nn4c(C)cc(C)nc34)cc2)nn1 to produce CCc1nn2c(C)cc(C)nc2c1Cc1ccc(-n2cc(C=O)nn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.