4-Carboxy-pyridin-3-sulfonsaeure
4-hydroxymethyl-3-mercaptopyridine
3-(triphenylmethylthio)-4-hydroxymethylpyridine
[2-(3-tritylsulfanyl-pyridin-4-ylmethylsulfanyl)-ethyl]-carbamic acid tert-butyl ester
(7R,6R)-7-[2-(2-amino-5-chloro-thiazol-4-yl)-2-(Z)-trityloxyimino-acetylamino]-3-[4-(2-tert-butoxycarbonylaminoethylsulfanylmethyl)-pyridin-3-ylsulfanyl]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester