Cassane diterpenoids from Lonchocarpus laxiflorus

Igoli JO, Onyiriuka SO, Letzel M, Nwaji MN, Gray AI (2008)
NATURAL PRODUCT COMMUNICATIONS 3(1): 5-10.

Journal Article | Published | English

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Abstract
Phytochemical investigation of the stem bark of Lonchocarpus laxiflorus yielded three new cassane diterpenoids, lonchocassane A [cassa-13 (14), 15-dien-18, 20-dioic acid], lonchocassane B [cassa-13 (14), 15-dien-20-oxo-18-oic acid] and lonchocassane C [cassa-13 (14), 15-dien-20-carboxyl-18-methylcarboxylate]. The known compounds. betulinic acid, betulinic acid acetate, betulin, lupeol, lupenone, trilinoleate, hexacosanyl and triacontanyl caffeates, 4-hydroxy-4-methylpentan-2-one, beta-sitosterol, beta-sitosterol acetate and stigmasterol were also isolated. The structures and identities of the compounds were established by spectroscopic methods.
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Igoli JO, Onyiriuka SO, Letzel M, Nwaji MN, Gray AI. Cassane diterpenoids from Lonchocarpus laxiflorus. NATURAL PRODUCT COMMUNICATIONS. 2008;3(1):5-10.
Igoli, J. O., Onyiriuka, S. O., Letzel, M., Nwaji, M. N., & Gray, A. I. (2008). Cassane diterpenoids from Lonchocarpus laxiflorus. NATURAL PRODUCT COMMUNICATIONS, 3(1), 5-10.
Igoli, J. O., Onyiriuka, S. O., Letzel, M., Nwaji, M. N., and Gray, A. I. (2008). Cassane diterpenoids from Lonchocarpus laxiflorus. NATURAL PRODUCT COMMUNICATIONS 3, 5-10.
Igoli, J.O., et al., 2008. Cassane diterpenoids from Lonchocarpus laxiflorus. NATURAL PRODUCT COMMUNICATIONS, 3(1), p 5-10.
J.O. Igoli, et al., “Cassane diterpenoids from Lonchocarpus laxiflorus”, NATURAL PRODUCT COMMUNICATIONS, vol. 3, 2008, pp. 5-10.
Igoli, J.O., Onyiriuka, S.O., Letzel, M., Nwaji, M.N., Gray, A.I.: Cassane diterpenoids from Lonchocarpus laxiflorus. NATURAL PRODUCT COMMUNICATIONS. 3, 5-10 (2008).
Igoli, John O., Onyiriuka, Samuel O., Letzel, Matthias, Nwaji, Martin N., and Gray, Alexander I. “Cassane diterpenoids from Lonchocarpus laxiflorus”. NATURAL PRODUCT COMMUNICATIONS 3.1 (2008): 5-10.
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