Enantioselective syntheses of (−)-7-oxo-kolavenic acid and (−)-methyl solidagonate from (−)-verbenone
                                
                                    
                                        作者:Michiharu Kato、Hiroshi Kosugi、Tsuyoshi Ichiyanagi、Takao Suzuki、Ariko Kodaira、Peter Drechsel、Hisahiro Hagiwara                                    
                                    
                                        DOI:10.1016/s0040-4039(99)01030-8
                                    
                                    
                                        日期:1999.7
                                    
                                    The first enantioselective synthesis of the title neo-trans-clerodanes 3 and 4b from (-)-verbenone 5 has been accomplished using the ene reaction and stereoselective conjugate addition reaction to the enone 13 as the key step. (C) 1999 Elsevier Science Ltd. All rights reserved.