黄海葵的化学成分研究(2)

CHEMICAL CONSTITUENTS FROM CHINESE ANTHO-PLEURA XANTHOGRAMMICA BERKLY(II)

从青岛产黄海葵[Anthopleura xanthogrammica(Berkly)]的乙酸乙酯提取物中,首次分离到5个化合物,分别以9,12-十八碳二烯酸(1)、9,14-二十二碳二烯酸(2)、1-○-十六碳烷酰2-○-(9-十八碳烯酰)-3-○-(9,12-十八碳二烯酰)甘油酯(3)、1-○-十六烷酰基-3-○-(14-二十碳烯酰基)甘油酯(4)和1-○-(9,12-十八碳二烯酰基)-2-○-(9,12-十八碳二烯酰基)甘油酯(5)。它们的化学结构经理化数据和波谱(IR、MS、~1HNMR和^(13)CNMR)分析,结合化学降解得以确定。它们系首次从黄海葵中分得,其中化合物(3)、(4)和(5)为新天然产物。

From ethyl acetate fraction of Chinese Anthopleura xanthogrammica B, collected from Qingdao beach, three new glycerolipids named 1-O-hexadecanoyl-2-O (9-oc-tadecenoyl )-3-O-( 9, 12-octadecadienoyl ) glycerol (3)'1-O-hexadecahoyl-3-O-(14-eiosyle-cenoyl)glycerol (4)and l-O-(9,12-octadecadienoyl)-2-O-(9,12-octadecadienoyl)glycerol (5) as well as two lipidic acids named 9,12-octadecadienoic acidd) and 9,14-docosandienoic acid (2) were isolated. Their structures were identified by various spectrial(IR,PNMR ,CNMR, MS,et al)analysis and chemical conversion.