2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate 、
3-(甲硫基)-4-氧代-4,5,6,7-四氢-2-苯并噻吩-1-羧酸 、
N,N-二异丙基乙胺 、
4-{3-[N,N-bis-(tert-butoxycarbonyl)aminomethyl]-phenyl}-piperidine 在
silica 、
二氯甲烷 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.17h,
以1-{1-[4-(3-(N,N-di-tert -butoxycarbonylaminomethyl)phenyl)-piperidin-1-yl]-methanoyl}-3-methylsulfanyl-6,7-dihydro-5H-benzo[c]thiophen-4-one was isolated as a colorless oil (177 mg)的产率得到1-{1-[4-(3-(N,N-di-tert-butoxycarbonylaminomethyl)phenyl)-piperidin-1-yl]-methanoyl}-3-methylsulfanyl-6,7-dihydro-5H-benzo[c]thiophen-4-one