从刺南蛇藤（ＣｅｌａｓｔｒｕｓｆｌａｇｅｌａｒｉｓＲｕｐｒ．）种子油中分离到八个β二氢沉香呋喃倍半萜，经红外、紫外、质谱及核磁共振谱确定它们的结构是１α乙酰氧基２α，９β二肉桂酰氧基β二氢沉香呋喃（１），１α，６β，１３三乙酰氧基９β苯甲酰氧基β二氢沉香呋喃（２），ｔｒｉｐｔｏｇｅｌｉｎＧ１（３），１α，６β二乙酰氧基９β苯甲酰氧基β二氢沉香呋喃（４），ｔｒｉｐｔｏｇｅｌｉｎＦ２（５），１α，２α二乙酰氧基９β肉桂酰氧基β二氢沉香呋喃（６），ｃｅｌａｆｏｒｌｉｎＢ３（７），１α，６β二乙酰氧基８α肉桂酰氧基９α苯酰氧基β二氢沉香呋喃（８）。其中１是新化合物，命名为ｃｅｌａｓｔｒｉｎｅＢ。 Eight β-dihydroanisole sesquiterpenes were isolated from seed oil of Celastrus flagelaris Rupr. Their structures were determined by infrared, ultraviolet, mass spectrometry and nuclear magnetic resonance spectroscopy. Their structure was 1αacetoxy2α, 9β. Di-cinnamoyloxy-βdihydroazefuran(1),1α,6β,13-triacetoxy-9β-benzoyloxyβdihydrofurfural(2),triptogelinG1( 3), 1α, 6β-diacetoxy 9β-benzoyloxy-β-dihydroazefuran (4), triptogelinF 2 (5), 1α, 2α-diacetoxy 9β-cinnamoyl Oxo-βdihydrofurfural (6), celaforlinB 3(7), 1α, 6βdiacetoxy 8αcinnamoyloxy9αbenzoyloxyβdihydrofurfural ( 8). One of them is a new compound named celastrineB.