(1S,5R)-1-[(1S)-1-ethyl-1,2-dihydro-9-methylpyrido[3,4-b]indolylcarbonyl]-5,8,8-trimethyl-3-oxabicyclo[3.2.1]octan-2-one                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 14.0h,
                                                                                                                以100%的产率得到(1S,5R)-1-[(1S)-1-ethyl-1,2,3,4-tetrahydro-9-methylpyrido[3,4-b]indolylcarbonyl]-5,8,8-trimethyl-3-oxabicyclo[3.2.1]octan-2-one