A benzoic acid ester from Uvaria narum

• Published in: Phytochemistry (Oxford) Vol. 38; no. 4; pp. 951 - 955
• Main Authors: Parmar, Virinder S., Bisht, Kirpal S., Malhotra, Abha, Jha, Amitabh, Errington, William, Howarth, Oliver W., Tyagi, Om D., Stein, Paul C., Jensen, Soren, Boll, Per M., Olsen, Carl E.
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 01.03.1995; Elsevier
• Subjects: Biochemistry & Molecular Biology; Biological and medical sciences; Chemical constitution; Fundamental and applied biological sciences. Psychology; General pharmacology; Life Sciences & Biomedicine; Medical sciences; Pharmacognosy. Homeopathy. Health food; Pharmacology. Drug treatments; Plant physiology and development; Plant Sciences; Science & Technology; Uvaria narum; glut-5-en-3-ol; betulapren-11-ol; U. hookeri; X-ray crystal structure; Annonaceae; 2- E-[2″-oxo-cyclopent-3″-en-1″-ylidene]ethyl benzoate; UVARIA NARUM; AFZELII; 2-E-[2''-OXO-CYCLOPENT-3''-EN-1''-YLIDENE]ETHYL BENZOATE; X-RAY CRYSTAL STRUCTURE; ANNONACEAE; U-HOOKERI; GLUT-5-EN-3-OL; BETULAPREN-11-OL; CONSTITUENTS; Benzoic acid; Molecular structure; Pharmacognosy; Chemical structure; Plant leaf; Ester; Folk medicine; Dicotyledones; Angiospermae; Isolation; Spermatophyta; Chemical composition
• ISSN: 0031-9422; 1873-3700
• DOI: 10.1016/0031-9422(94)00732-9

A new benzoic acid ester, 2- E-[2″-oxo-cyclopent-3″-en-1″-ylidene]ethyl benzoate, together with tritriacontane, tetratriacontanol and β-sitosterol have been isolated from a petrol extract of the leaves of Uvaria narum. The structure of the new ester has been established on the basis of spectral data and finally confirmed by X-ray crystallography. Glut-5(6)-en-3-ol and betulapren-11-ol have also been isolated from a petrol extract of the leaves and stems of U. hookeri; this is the first report of the isolation of the latter compound from the genus Uvaria.