Using O=C(Cl)OCCl, Cc1cc2c(s1)Nc1ccccc1N=C2N1CCN(C)CC1 to produce Cc1cc2c(s1)N(C(=O)OCCl)c1ccccc1N=C2N1CCN(C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.