Succinic acid (2R,3R,4S,5R,6R)-3-benzoyloxy-2-(5-benzyloxycarbonylamino-pentyloxy)-6-benzyloxymethyl-5-hydroxy-tetrahydro-pyran-4-yl ester (2S,3R,4R,5S,6S)-4-benzyloxy-2-ethylsulfanyl-5-hydroxy-6-methyl-tetrahydro-pyran-3-yl ester 在
N-碘代丁二酰亚胺 、 3 A molecular sieve 作用下,
以
乙腈 为溶剂,
反应 21.0h,
以35%的产率得到Benzoic acid (1R,3R,5S,6S,7R,8R,15S,16R,17R,19R)-7-benzyloxy-17-(5-benzyloxycarbonylamino-pentyloxy)-19-benzyloxymethyl-6-hydroxy-5-methyl-10,13-dioxo-2,4,9,14,18-pentaoxa-tricyclo[13.4.0.03,8]nonadec-16-yl ester