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Tri terpenoids from 2 mallotus species a nortriterpene and 2 new acids


, : Tri terpenoids from 2 mallotus species a nortriterpene and 2 new acids. Phytochemistry (Oxford) 15(6): 985-986

The carbonyl compound, previously isolated from the stems of M. paniculatus, was proven to be 29-nor-21.alpha.H-hopane-3,22-dione. The light petrol extracts of both the leaves and stems of M. hookerianus contained friedelin, friedelan-3.beta.-ol and sitosterol, and the ethanol extract of the former 2 new triterpene acids, 3-oxours-12-ene-27,28-dioic and 3.beta.,28-dihydroxyurs-12-en-27-oic acids.

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Related references

Hui, W.H.; Li, M.M., 1977: Tri terpenoids from mallotus repandus 3 new alpha lactones. The leaves of M. repandus contain friedelin, 3.beta.-hydroxy-13.alpha.-ursan-28,12.beta.-olide (1), its benzoate (2) and ursolic acid. The stems contain friedelin, lupeol, .alpha.-amyrin, 2 and 3.alpha.-hydroxy-13.alpha.-ursan-28, 12.beta.-olide (...

Hui, W.; Li, M., 1976: Triterpenoids from two Mallotus species: a nor-triterpene and two new acids. The carbonyl compound, previously isolated from the stems of Mallotus paniculatus, has been proved to be 29-nor-21H-hopane-3,22-dione. The light petrol extracts of both the leaves and stems of M. hookerianus have been found to contain friedelin, f...

Hui W.H.; Chan C.K.; Chow L.C.; N.H.Y.; Siu Y.K., 1969: Tri terpenoids and sterols of aporosa chinensis d and mallotus paniculatus d. Phytochemistry (Oxford) 8(2): 519

Battu R.G.; Youngken H.W.Jr, 1968: Biogenesis of terpenoids in mentha piperita d ii di terpenoids tri terpenoids and tetra terpenoids inst auto radiography carotenoids phytol chlorophyllin chlorophyll sterols enz mevalonic kinase. Lloydia (Cincinnati) 31(1): 30-37

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Sidwell, W.; Tamm, C.Z.egler, R.F.ner, J.C.ardy, J., 1975: Eucosterol, a novel spirocyclic nortriterpene isolated from bulbs of Eucomis species. Journal 1, 97 (12) 3518-2519

Sticher O., 1977: Plant mono terpenoids di terpenoids and sesqui terpenoids with pharmacological or therapeutical activity. Wagner, Hildebert And Peter Wolff (Ed ) Proceedings in Life Sciences New Natural Products And Plant Drugs With Pharmacological, Biological Or Therapeutical Activity Proceedings Of The First International Congress on Medicinal Plant Research, Munich, West Germany, Sept 6-10, 1976 Xi+286p Illus Springer-Verlag: New York, N Y , Usa; Berlin, West Germany Isbn 0-387-08292-1; Isbn 3-540-08292-1 137-176

Avilla, J.; Teixido, A.; Velazquez, C.; Alvarenga, N.; Ferro, E.; Canela, R., 2000: Insecticidal activity of Maytenus species nortriterpene quinone methides against codling moth, Cydia pomonella. The insecticidal effects of nortriterpene quinone methides (pristimerin, tingenonee, and 20-alpha-hydroxytingenone) are reported for the first time. The natural products were isolated from Maytenus sp. (Celastraceae) and their effects tested on la...