Succinic acid (2R,3S,4S,5R,6S)-5-benzoyloxy-6-benzyloxy-2-benzyloxymethyl-4-hydroxy-tetrahydro-pyran-3-yl ester (2R,3S,4S,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-2-phenylsulfanyl-tetrahydro-pyran-3-yl ester 在
N-碘代丁二酰亚胺 、
三氟甲磺酸三甲基硅酯 作用下,
以
乙腈 为溶剂,
反应 0.25h,
以72%的产率得到Benzoic acid (1S,5R,6R,7S,8S,15R,16R,18S,19R)-6,7,18-tris-benzyloxy-5,16-bis-benzyloxymethyl-10,13-dioxo-2,4,9,14,17-pentaoxa-tricyclo[13.4.0.0
3,8]nonadec-19-yl ester