Using O=C(O)CCc1ccc2c(c1)OCCO2, NC1CC2(CCC2)Oc2c(F)cc(F)cc21 to produce O=C(CCc1ccc2c(c1)OC=CO2)NC1CC2(CCC2)Oc2ccc(F)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.