2007
DOI: 10.1177/1934578x0700201118
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New Prenylated Dihydrostilbenes from Croton Laevifolius

Abstract: Two prenylated dihydrostilbenes have been isolated from the methanol extract of the flower of Croton laevifolius. The structures of these compounds were assigned as 3,5,3´,4´-tetrahydroxy-2,6,2´-tris(3-methylbut-2-enyl)dihydrostilbene (laevifolin A) and 3,5,3´,4´-tetrahydroxy-2,6,5´-tris(3-methylbut-2-enyl)dihydrostilbene (laevifolin B) based on spectroscopic evidence, including UV, IR, 1D and 2D NMR, and mass spectra. The chemotaxonomic significance of the presence of these dihydrostilbene derivatives is brie… Show more

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Cited by 7 publications
(6 citation statements)
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“…A new nor -lignan ( 391 ) was obtained from the twigs and leaves of C. kongensis [ 67 ]. Investigations on C. laevifolius gave two new prenylated dihydrostilbenes, laevifolin A ( 393 ), B ( 394 ) and one new aromatic compound ( 399 ) [ 89 , 128 ]. A long chain linear ester, lobaceride ( 392 ) was isolated from the twigs and leaves of C. lobatus [ 129 ].…”
Section: Chemical Constituentsmentioning
confidence: 99%
“…A new nor -lignan ( 391 ) was obtained from the twigs and leaves of C. kongensis [ 67 ]. Investigations on C. laevifolius gave two new prenylated dihydrostilbenes, laevifolin A ( 393 ), B ( 394 ) and one new aromatic compound ( 399 ) [ 89 , 128 ]. A long chain linear ester, lobaceride ( 392 ) was isolated from the twigs and leaves of C. lobatus [ 129 ].…”
Section: Chemical Constituentsmentioning
confidence: 99%
“…We use cookies to improve your experience with our site. More information Compounds 1 and 2 were determined to have the structures of laevofilins A and B, respectively, based on comparison of their NMR spectral data with those reported in the literature [10].…”
mentioning
confidence: 99%
“…As further work on the phytochemistry of this genus, in this paper we report the presence of prenylated dihydrophenanthrenes, trivially named macajavanicins A-C (1-3) (Fig. 1), along with two known prenylated dihydrostilbenes 4, 5 [10] from the leaves of M. javanica (Blume) Mull. Arg.…”
Section: Introductionmentioning
confidence: 97%