森林千里光化学成分的研究

Studies on Chemical Constituents of Senecio Nemorensis L.

呋喃雅槛蓝型倍半萜广泛存在于千里光属植物中.目前已研究的该属植物大都含有此类成分,关于森林千里光(senecio nemorensis L.)中的此类倍半萜成分,Novotny等人曾从该植物的两个亚种中分别分离到5种和1种呋喃雅槛蓝型倍半萜.对于生长在我国的森林千里光中的此类成分的研究迄今未见报道.我们从甘肃漳县采集的森林千里光的全草中分离出3种此类成分S_1、S_2和S_3.经IR、UV、MS和NMR光谱确定S_3是一种新化合物.

A new sesquiterpene was obtained from the ethanol extract of the whole plant of Sertecio Nemorensis L. by silic gel column chromatography. Its structure is established as la, 10β-dihydroxy-6β-angeloyloxy-9-oxo-furanoeremophylane by means of IR, UV, MS, 1H NMR, 13C NMR, DEPT and two known sesquiterpenes were isolated as well.