dihydroartemisinic acid                                                                                                                                                              在
                                                                                                                                                                                 
氧气                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
(8R)-4,8,12-trimethyl-2-oxatricyclo[7.3.1.05,13]tridecan-3-one   、                                                                                             
(1S,4R,8R)-4,8-dimethyl-12-methylidene-2,13-dioxatricyclo[7.4.1.05,14]tetradecan-3-one   、                                                                                             2H-萘并[8a,1-b]呋喃-2-酮,3,3a,4,5,6,6a,7,8-八氢-6,9-二甲基-3-亚甲基-,(3aS,6R,6aS,10aS)-   、                                                                                             
Dihydro-epi-deoxyarteannuin B   、                                                                                             
artemisinic acid