Using O=C1OCc2cc(CCBr)ccc21, c1c2c(cc3nonc13)CC(N1CCNCC1)CC2 to produce O=C1OCc2cc(CCN3CCN(C4CCc5cc6nonc6cc5C4)CC3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.