Using Fc1ccccn1, O=C1OC2(CCN(C(=O)c3c[nH]c4cc(Cl)ccc34)CC2)c2ccccc21 to produce O=C1OC2(CCN(C(=O)c3cn(-c4ccccn4)c4cc(Cl)ccc34)CC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.