Using COc1c(NCCF)ccc(F)c1F, CCOC=C(C(=O)OCC)C(=O)OCC to produce CCOC(=O)c1cn(CCF)c2c(OC)c(F)c(F)cc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.