C
32H
24O
9                                                                                                                                                              在
                                                                                                                                                                                 selenium(IV) oxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                    反应 15.0h,
                                                                                                                以49%的产率得到(1S,17R,18S,19R,31R)-7,19,25-trihydroxy-9,19,31-trimethyl-2,30-dioxaoctacyclo[16.11.2.01,17.03,16.04,13.06,11.017,22.024,29]hentriaconta-3(16),4(13),6(11),7,9,14,21,24(29),25,27-decaene-5,12,20,23-tetrone