Using O=C(NN1CCNCC1)c1cnc(-c2ccccc2)nc1, CC(=O)Cl to produce CC(=O)N1CCN(NC(=O)c2cnc(-c3ccccc3)nc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.