三氧化硫吡啶   、                                                                                      5-cholestene-3β,19-diol 19-monoacetate                                                                                                                                                                                              以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                以85%的产率得到Acetic acid 17-((R)-1,5-dimethyl-hexyl)-13-methyl-3-sulfooxy-1,2,3,4,7,8,9,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-10-ylmethyl ester; compound with pyridine