在
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
以53%的产率得到(5-methyl-2-methylidenehexyl) (E,2R)-2-hydroxy-6-[(1R,4E,6E,9R,11R,12S,13S,14Z,16E,19Z,21S,23S,24S)-11-hydroxy-24-(hydroxymethyl)-12,15,24-trimethyl-3-oxo-2,22,26-trioxatricyclo[19.3.1.19,13]hexacosa-4,6,14,16,19-pentaen-23-yl]hex-4-enoate