threo-(1-hydroxy-1-phenyl-2-pentyl)triphenylphosphonium bromide

(3R,4R)-2,2,2,4-Tetraphenyl-3-propyl-2λ5-[1,2]oxaphosphetane

(3R,4S)-2,2,2,4-tetraphenyl-3-propyl-1,25-oxaphosphetane

(2-Methoxyethyl)triphenylphosphonium bromide