Using O=C(NCC1CCC(F)(F)CC1)c1c(Cl)ccc2nc(Cl)ccc12, CCOC(=O)CCN to produce CCOC(=O)CCNc1ccc2c(C(=O)NCC3CCC(F)(F)CC3)c(Cl)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.