title: Allelopathic prenylflavanones from the fallen leaves of Macaranga tanarius.
abstract: Two new prenylflavanones, tanariflavanones A (1), and B (2), and one known compound, (-)-nymphaeol-C (3), were isolated from the fallen leaves of Macaranga tanarius. Compounds 1 and 2 showed inhibition of radical growth of lettuce seedlings at 200 ppm. Their structures were elucidated primarily by NMR, circular dichroism, and mass spectroscopic methods.
authors: Department of Botany, National Taiwan University, Taipei, Taiwan 106, Republic of China.
authors: M H
authors: MH
authors: Tseng
authors: C H
authors: CH
authors: Chou
authors: Y M
authors: YM
authors: Chen
authors: Y H
authors: YH
authors: Kuo
mesh_terms: D002942:Circular Dichroism; D019665:Euphorbiaceae / Q000737:chemistry*; D044950:Flavanones; D005419:Flavonoids / Q000737:chemistry*; D006540:Herbicides / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity; D018545:Lactuca / Q000254:growth & development; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013624:Taiwan
chemical_list: D044950:Flavanones; D005419:Flavonoids; D006540:Herbicides; C433625:tanariflavanone A; C433626:tanariflavanone B