Using COC(=O)c1c(C)cccc1COC1CCCC(OCc2nc(-c3ccc(Br)cc3)oc2C)C1 to produce Cc1cccc(COC2CCCC(OCc3nc(-c4ccc(Br)cc4)oc3C)C2)c1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.