Using CS(=O)(=O)OC[C@H]1CC[C@H](Nc2c(C(=O)C3CC3)cnc3ccc(Br)cc23)CC1, COC1CCNC1 to produce COC1CCN(C[C@H]2CC[C@H](Nc3c(C(=O)C4CC4)cnc4ccc(Br)cc34)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.