(S)-2,2-Dimethyl-4-[3-((R)-toluene-4-sulfinyl)-propyl]-[1,3]dioxolane 、
(5S)-5,6-dimethyloxan-2-one 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
生成 (7S,8S)-1-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-8-hydroxy-7-methyl-3-((R)-toluene-4-sulfinyl)-nonan-4-one 、 (7S,8R)-1-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-8-hydroxy-7-methyl-3-((R)-toluene-4-sulfinyl)-nonan-4-one