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M.S. Flom

Bio: M.S. Flom is an academic researcher from Ohio State University. The author has an hindex of 1, co-authored 1 publications receiving 19 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, three uncommon lignans calopiptin (1), galgravin (2 ) and veraguensin (3 ) were isolated from M. acuminata root-bark, along with a novel bis-phenylpropide, acuminatin (4 ) which was characterized by physical and chemical methods.

19 citations


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Journal ArticleDOI
TL;DR: The hexane extract from the roots of Krameria cystisoides yielded besides conocarpan, licarin A, eupomatenoids 6 and 13, and ratanhiaphenol I 16 hitherto unknown lignans, neolignans and nomeoligns, among them toltecol and olmecol as mentioned in this paper.

100 citations

Journal ArticleDOI
TL;DR: The leaves and seeds of Virola surinamensis contain 17 lignans; fragansins A2 and D2, galbacin, galbelgin, 5methoxygalbelgin; grandisin, verrucosin, aristolignan, austrobailignan; calopeptin, veraguensin, 5-methoxveraguensIN, nectandrin B, Galbulin and galcatin; three propiophenone derivatives; two γ-lactones; juruenolide C

40 citations

Journal ArticleDOI
TL;DR: In this article, a new method for the preparation of substituted dihydrobenzofurans is described, mediated by cerium ammonium nitrate (CAN), which undergoes the oxidative dimerization to generate (±)-conocarpan,(±)-licarin A, (±)acuminatin, as well as their related substituted dihedrobenzmanofuran.

29 citations

Journal ArticleDOI
TL;DR: Although phagostimulants play a role in the specialization of thetroilus group on the Lauraceae, the presence of toxins and/or deterrents in nonhosts is also important in determining food plant patterns in these species.
Abstract: The role of toxins and deterrents in preventingtroilus group species (Lepidoptera, Papilionidae) from feeding on magnoliaceous hosts was investigated using bioassay-directed isolation ofMagnolia virginiana allelochemicals. A fraction consisting of three neolignan compounds significantly reduced survival of first instarP. palamedes, atroilus group member. Two of these compounds, magnolol and a biphenyl ether, were tested individually and were both toxic toP. palamedes. The larval survival ofP. troilus, anothertroilus group species, was also significantly reduced by magnolol but not by the biphenyl ether. In contrast,P. glaucus, a polyphagousglaucus group species that feeds on magnoliaceous hosts, was not affected by either compound. The effect of these compounds against a. polyphagous nonpapilionid was examined using the fall webworm (Hyphantria cunea, Lepidoptera: Arctiidae). The biphenyl ether but not magnolol significantly lowered webworm first-instar survival, demonstrating that polyphagy does not preadapt lepidopterans to feeding on this neolignan. These results demonstrate that although phagostimulants play a role in the specialization of thetroilus group on the Lauraceae, the presence of toxins and/or deterrents in nonhosts is also important in determining food plant patterns in these species.

28 citations

Journal ArticleDOI
TL;DR: This is the first report of two neolignans of spirocyclohexadienone skeleton and of taspine from the Magnoliaceae family and the second report of the natural occurrence of futoenone.

22 citations