title: Six New Diarylbutane Lignans from Justicia procumbens
abstract: Six new diarylbutane lignans, namely, justin A (1), (-)-dihydroclusin diacetate (2), secoisolariciresinol dimethyl ether diacetate (3), 5-methoxy-4,4'-di-O-methylsecolariciresinol diacetate (4), justin B (5), and justin C (6), together with three known diarylbutane lignans [2,3-demethoxysecisolintetralin acetate (7), secoisolariciresinol dimethyl ether (8), and 5-methoxy-4,4'-di-O-methylsecolariciresinol (9)], were isolated from the whole plant of Justicia procumbens. Their structures were established by spectral analysis.
authors.affiliation: National Research Institute of Chinese Medicine, No. 155-1, Sec. 2, Li Nung Street, Peitou, Taipei, Taiwan, Republic of China.
authors.initials: CC
authors.lastname: Chen
authors.initials: WC
authors.lastname: Hsin
authors.initials: YL
authors.lastname: Huang