Trifluoro-acetic acid (2R,3R)-3-benzoylamino-1-(4-hydroxymethyl-2-oxo-2,5-dihydro-furan-3-yl)-4-oxo-azetidin-2-yl ester

(3β-cholestanyloxy)triphenylphosphonium trifluoroacetate

三苯基氧化膦

2,2,2-trifluoro-N-(2-iodo-4-nitrophenyl)acetimidoyl chloride