Using O=S(=O)(c1ccc(CBr)cc1)N1CCOCC1, CCOC(=O)Cc1c(C)[nH]c2ccc(F)cc12 to produce Cc1c(CC(=O)O)c2cc(F)ccc2n1Cc1ccc(S(=O)(=O)N2CCOCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.