Using O=C(O)c1ccc2c(c1)CCN2c1ccc(F)cc1, O=C(c1nccs1)N1CCN(C2CNC2)CC1 to produce O=C(c1ccc2c(c1)CCN2c1ccc(F)cc1)N1CC(N2CCN(C(=O)c3nccs3)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.