Using O=C1c2ccccc2C(=O)N1O, COc1ccccc1N1CCN(CCCl)CC1 to produce COc1ccccc1N1CCN(CCON2C(=O)c3ccccc3C2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.