(6R)-7t-((R)-2-tert-butoxycarbonylamino-2-phenyl-acetylamino)-8-oxo-3-(2-oxo-2H-pyridin-1-ylmethyl)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2ξ-carboxylic acid benzhydryl ester

5-benzhydryloxy-2-(hydroxymethyl)-pyran-4-one

1,1-Bis-(4-bromo-phenyl)-2-(2,2-dimethyl-3,3-diphenyl-cyclopropyl)-ethanol

benzhydryl 6β-allylpenicillanate

4-((2S,3R)-3-Benzyl-4-oxo-azetidin-2-yloxy)-benzoic acid benzhydryl ester