Using N#Cc1cc2c(cc1C(F)(F)F)[nH]c(=O)c(=O)n2O, O=C(O)CBr to produce N#Cc1cc2c(cc1C(F)(F)F)[nH]c(=O)c(=O)n2OCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.