Using CNc1ccccc1Cl, O=C(O)c1nc2c(s1)-c1ccccc1OCC2 to produce CN(C(=O)c1nc2c(s1)-c1ccccc1OCC2)c1ccccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.