New labdane-type diterpenoids from Leonurus heterophyllus SW.
Five new natural labdane-type diterpenoids (5-9), designated leoheteronins A-E, together with four known diterpenoids (1-4), two phytosterols as a mixture of beta-sitosterol and stigmasterol, and the flavone genkwanin (10) were isolated from the aerial parts of Leonurus heterophyllus SW. (Lamiaceae) collected in northern Vietnam. Compound 1 was isolated for the first time from a Leonurus species, and 10 is considered to be a chemotaxonomic marker of the Leonurus genus. Their structures were determined using spectroscopic analyses.
Giang
Phan Minh
PM
Faculty of Chemistry, College of Natural Science, Vietnam National University, 19 Le Thanh Ton, Hanoi, Vietnam.
Son
Phan Tong
PT
Matsunami
Katsuyoshi
K
Otsuka
Hideaki
H
D002851:Chromatography, High Pressure Liquid; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification*; D031332:Leonurus / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013055:Spectrophotometry, Infrared
D004224:Diterpenes