[(2R,3R,6S)-6-[(1R,2R)-1,2-dihydroxy-2-(6-methoxy-[1,5]naphthyridin-4-yl)-ethyl]-2-((4RS)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl)-tetrahydro-pyran-3-yl]-carbamic acid tert-butyl ester 在
吡啶 、
三光气 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
生成 {(2R,3R,6S)-2-((4R)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl)-6-[(4R,5R)-5-(6-methoxy-[1,5]naphthyridin-4-yl)-2-oxo-[1,3]dioxolan-4-yl]-tetrahydro-pyran-3-yl}-carbamic acid tert-butyl ester 、 {(2R,3R,6S)-2-((4S)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl)-6-[(4R,5R)-5-(6-methoxy-[1,5]naphthyridin-4-yl)-2-oxo-[1,3]dioxolan-4-yl]-tetrahydro-pyran-3-yl}-carbamic acid tert-butyl ester