3-{4-[(R)-2-(2-carbamoylhexahydro-2,5-methanopentalen-3a-ylamino)-6,6-dimethyl-4,4-dioxo-5,6-dihydro-4H-4λ6-[1,4,3]oxathiazin-5-ylmethyl]-3-fluorophenyl}azetidine-1-carboxylic acid tert-butyl ester 、
甲基磺酰氯 在
三氟乙酸 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.33h,
以3 mg的产率得到3a-{(R)-5-[2-fluoro-4-(1-methanesulfonylazetidin-3-yl)benzyl]-6,6-dimethyl-4,4-dioxo-5,6-dihydro-4H-4λ
6-[1,4,3]oxathiazin-2-ylamino}hexahydro-2,5-methanopentalene-2-carboxamide