7-hydroxy-10β-hydroxymethyl-1β,8β-dimethylgibbane-1α,4aα-carbolactone                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二乙基(2-氯-1,1,2-三氟乙基)胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
7-fluoro-10β-hydroxymethyl-1β,8β-dimethylgibbane-1α,4aα-carbolactone   、                                                                                             
7-fluoro-10β-hydroxymethyl-1β,8α-dimethylgibbane-1α,4aα-carbolactone   、                                                                                             10β-(2'-fluoro-2'-hydroxyacetoxymethyl)-4aα-hydroxy-7α-fluoro-1β,8α-dimethylgibbane-1α,2'-carbolactone   、                                                                                             
10β-(2'-fluoro-2'-hydroxyacetoxymethyl)-4aα-hydroxy-7α-fluoro-1β,8α-dimethylgibbane-1α,2'-carbolactone