Using [N-]=[N+]=[N-], N#Cc1c(NCCCc2ccccc2)ccnc1Br to produce N#Cc1c(NCCCc2ccccc2)ccnc1N=[N+]=[N-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.