Using CC(C)(C)OC(=O)NCC(=O)ON1C(=O)CCC1=O, Nc1cnn2c1NCCC2 to produce CC(C)(C)OC(=O)NCC(=O)Nc1cnn2c1NCCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.