(4aR,7S)-4-(allyloxycarbonyl)-3-[(4S)-4-(tert-butyldimethylsiloxy)pentyl]-7-(2-hydroxyethyl)-1-(2,2,5,7,8-pentamethylchroman-6-sulfonylimino)-1,2,4a,5,6,7-hexahydropyrrolo[1,2-c]pyrimidine 在
氧气 、
过氧化苯甲酰 作用下,
以
四氢呋喃 为溶剂,
60.0 ℃
、101.32 kPa
条件下,
反应 4.0h,
以65%的产率得到(7S)-3-[(4S)-4-(tert-butyldimethylsiloxy)pentyl]-7-(2-hydroxyethyl)-1-(2,2,5,7,8-pentamethylchroman-6-sulfonylimino)-1,5,6,7-tetrahydropyrrolo[1,2-c]pyrimidine-4-carboxylic acid allyl ester