Using C1CN2CCC(CC2)N1, Brc1ccc(-c2nnc(SCc3ccccc3)o2)o1 to produce Brc1ccc(-c2nnc(N3CCN4CCC3CC4)o2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.