Using CC(C)(C)OC(=O)N1CC(C)(CO)c2ccc(Br)cc21, CI to produce COCC1(C)CN(C(=O)OC(C)(C)C)c2cc(Br)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.