Using COS(=O)(=O)OC, CC(C)(C)OC(=O)N1CCC(n2cc(Br)c(CO)n2)CC1 to produce COCc1nn(C2CCN(C(=O)OC(C)(C)C)CC2)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.