Using O=C1NCCN1c1cccnc1, Cc1cc(Cl)c(OCCCCCCBr)c(Cl)c1 to produce Cc1cc(Cl)c(OCCCCCCN2CCN(c3cccnc3)C2=O)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.