Using CS(=O)(=O)OCCCNC(=O)C(F)(F)F, Clc1ccc(C2=CCNCC2)cc1 to produce O=C(NCCCN1CC=C(c2ccc(Cl)cc2)CC1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.