Using CCOC(=O)Cc1ccc(NN)cc1, CN1CCC(CC=O)CC1 to produce COC(=O)Cc1ccc2[nH]cc(C3CCN(C)CC3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.