4-(2-chloroethyl)thiomorpholine 1,1-dioxide 在
potassium phosphate 、 potassium iodide 、 sodium hydroxide 作用下,
以
1,4-二氧六环 、
乙腈 为溶剂,
反应 20.0h,
生成 (S)-4-((3aR,5aR,5bR,7aR,11aS,11bR,13aS)-3a-((2-(1,1-dioxidothiomorpholino)ethyl)amino)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-2-oxo-3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a-hexadecahydro-2H-cyclopenta[a]chrysen-9-yl)-1-(fluoromethyl)cyclohex-3-ene-1-carboxylic acid