Using C[C@H]1CN(c2nnc(Cl)c3ccccc23)CCN1, O=C(Cl)c1ccccc1 to produce C[C@H]1CN(c2nnc(Cl)c3ccccc23)CCN1C(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.