Using CSC(=S)NCCCN1CCN(c2ccccc2)CC1, [N-]=[N+]=[N-] to produce S=c1[nH]nnn1CCCN1CCN(c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.