tert-butyl 3-{2-[(E)-{[(S)-tert-butylsulfinyl]imino}methyl]-3-fluorophenyl}propanoate 、
lithium hexamethyldisilazane 、
氯化铵 、
乙酸乙酯 在
Brine 、
magnesium sulfate 、 silica gel 、
tert-butyl (1R,2R)-1-{[(S)-tert-butylsulfinyl]amino}-7-fluoroindane-2-carboxylate 、
tert-butyl (1S,2S)-1-{[(S)-tert-butylsulfinyl]amino}-7-fluoroindane-2-carboxylate 作用下,
以
四氢呋喃 为溶剂,
反应 8.5h,
以to obtain 390 mg of tert-butyl (1S,2R)-1-{[(S)-tert-butylsulfinyl]amino}-7-fluoroindane-2-carboxylate (Preparation Example 113a), and 130 mg of each of tert-butyl (1R,2R)-1-{[(S)-tert-butylsulfinyl]amino}-7-fluoroindane-2-carboxylate and tert-butyl (1S,2S)-1-{[(S)-tert-butylsulfinyl]amino}-7-fluoroindane-2-carboxylate (Preparation Example 113b and Preparation Example 113c)的产率得到tert-butyl (1S,2R)-1-{[(S)-tert-butylsulfinyl]amino}-7-fluoroindane-2-carboxylate