Using CC(C)(C)OC(=O)N1CCOc2c(sc(Br)c2C2CC2)C1, CB(O)O to produce Cc1sc2c(c1C1CC1)OCCN(C(=O)OC(C)(C)C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.