肋果茶中的萜类化学成分研究(英文)

Terpenoids from Sladenia celastrifolia

从肋果茶(Sladenia celastrifolia)95%乙醇提取物的乙酸乙酯部位中分离得到15个萜类化合物,经波谱学方法分别鉴定为sladeniafolin A(1),grasshopper ketone(2),(3S,5R,6S,7E,9R)-7-megastigmene-3,6,9-triol(3),hedytriol(4),(3S,5R,6R,7E,9R)-3,5,6,9-tetrahydroxy-7-megastigmene(5),1'S*,4'R*-8-(4'-hydroxy-2',6',6'-trimethylcyclohex-2-enyl)-6-methyloct-3E,5E,7E-trien-2-one(6),2α,3α,19α,23-tetrahydroxyurs-12-en-28-oicacid(7),2α,3β,19α,23-tetrahydroxyurs-12-en-28-oic acid(8),pomolic acid(9),3-O-acetyl pomolic acid(10),urs-aldehyde(11),camarolide(12),3β-hydroxyurs-11-en-13β(28)-olide(13),3β-hydroxy-11α,12α-epoxy-urs-13β,28-olide(14)和28-O-β-D-glucopyranosyl euscaphic acid(15)。以上化合物均首次从该植物中分离得到,其中1为新的C9裂环烯醚萜。

A new C9 seco-iridoid sladeniafolin A（1）,together with fourteen known compounds were isolated from the ethanol extract of Sladenia celastrifolia Kurz for the first time.On the basis of spectral data,the known compounds were identified as grasshopper ketone（2）,（3S,5R,6S,7E,9R）-7-megastigmene-3,6,9-triol（3）,hedytriol（4）,（3S,5R,6R,7E,9R）-3,5,6,9-tetrahydroxy-7-megastigmene（5）,1′S＊,4′R＊-8-（4′-hydroxy-2′,6′,6′-trimethylcyclohex-2-enyl）-6-methyloct-3E,5E,7E-trien-2-one（6）,2α,3α,19α,23-tetrahydroxyurs-12-en-28-oic acid（7）,2α,3β,19α,23-tetrahydroxyurs-12-en-28-oic acid（8）,pomolic acid（9）,3-O-acetyl pomolic acid（10）,ursaldehyde（11）,camarolide（12）,3β-hydroxyurs-11-en-13β（28）-olide（13）,3β-hydroxy-11α,12α-epoxy-urs-13β,28-olide（14） and 28-O-β-D-glucopyranosyl euscaphic acid（15）.