Using C[C@@H]1CNC[C@H](C)N1, O=Cc1ccc(Br)c(CN2CCSCC2)c1 to produce C[C@@H]1CN(Cc2ccc(Br)c(CN3CCSCC3)c2)C[C@H](C)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.