反应详情

1-[(3S,4R)-1-Benzyloxycarbonyl-4-methyl-3-pyrrolidinyl]cyclopropanecarboxylic acid (1.20 g, 3.66 mmol) was dissolved in tert-butyl alcohol (50 ml), and the solution was mixed with diphenylphosphoryl azide (0.946 ml, 4.39 mmol) and triethylamine (1.02 ml, 7.32 mmol) and heated under reflux for 19 hours. After completing the reaction, the solvent was evaporated and the resulting residue was purified by silica gel column chromatography (silica gel, 120 ml; ethyl acetate:hexane=1:2), to thereby obtain 0.793 g (58%) of the title compound.

1. temperatureheated
2. temperatureunder reflux for 19 hours
3. customthe reaction
4. customthe solvent was evaporated
5. customthe resulting residue was purified by silica gel column chromatography (silica gel, 120 ml; ethyl acetate:hexane=1:2)