Using CCOC(=O)CC1(CC)OCCc2c1[nH]c1c(CC)c(Br)ccc21 to produce CCc1c(Br)ccc2c3c([nH]c12)C(CC)(CC(=O)O)OCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.