在
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
以2.0 mg的产率得到[(1S,3S,7S,8E,11S,12S,13E,15S,17R,21R,23R,25S)-11,21-dihydroxy-17-(hydroxymethyl)-13-(2-methoxy-2-oxoethylidene)-10,10-dimethyl-12-octanoyloxy-19-oxo-6,18,27,28,29-pentaoxatetracyclo[21.3.1.13,7.111,15]nonacos-8-en-25-yl] benzoate