Using COCCOc1nc(-c2ccc(Cl)nc2)nc2c1CNCC2, O=C(O)c1cnn2ccccc12 to produce COCCOc1nc(-c2ccc(Cl)nc2)nc2c1CN(C(=O)c1cnn3ccccc13)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.