Using CCOC(=O)CN(CCCN1CCN(C)CC1)Cc1cc(Br)cnc1N to produce CN1CCN(CCCN2CC(=O)Nc3ncc(Br)cc3C2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.