8-hydroxy-5-methyl-7-nitro-1,2,3,4,4a,9a-hexahydro-9-fluorenone                                                                                                                                                              在
                                                                                                                                         palladium-carbon                                                                                                                                                                          作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        以to obtain 3.5 g of 7-amino-8-hydroxy-5-methyl-1,2,3,4,4a,9a-hexahydro-9-fluorenone (yellow crystal)的产率得到7-amino-8-hydroxy-5-methyl-1,2,3,4,4a,9a-hexahydro-9-fluorenone