Thiols may be converted in high yield into unsymmetrical 2-pyridyl disulfides 3. Treatment of these with alkylating agenta (eg, alkyl fluorosulfonates or oxonium salta) affords the corresponding N-alkylpyridyl disulfides 4, which are potent sulfenylating agents (Scheme 11) and react smoothly with a variety of sulfur nucleophiles (eg, thiols, thiones, thioamides, dithiocarbamates, thiocyanate, etc.) to afford disulfides, with amines to afford sulfenamides ...
![2-(((3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl)disulfanyl)-1-methylpyridin-1-ium trifluoromethanesulfonate结构式](https://image.chemsrc.com/caspic/437/136911-96-1.png)
