title: A new homotriterpene from the roots of Marsdenia tenacissima Wight and Arn.
abstract: A new homotriterpene isolated from the roots of Marsdenia tenacissima Wight et Arn. has been characterized as 13-(31,32-dimethyl-30-methylene-21alpha-acetoxytetradecanyl)-29-methyl-perhydrophenanthr-1,3-diene on the basis of spectral analyses.
authors.affiliation: Phytochemistry Research Laboratory, Department of Pharmacognosy and Phytochemistry, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi, India.
authors.forename: D
authors.initials: D
authors.lastname: Goel
authors.forename: M
authors.initials: M
authors.lastname: Ali
mesh_terms: D002725:Chloroform; D004987:Ethers; D007194:India; D009682:Magnetic Resonance Spectroscopy; D031101:Marsdenia / Q000737:chemistry*; D000432:Methanol; D010616:Phenanthrenes / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D012997:Solvents; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C493323:13-(31,32-dimethyl-30-methylene-21-acetoxytetradecanyl)-29-methylperhydrophenanthra-1,3-diene; D004987:Ethers; D010616:Phenanthrenes; D010936:Plant Extracts; D012997:Solvents; D014315:Triterpenes; D002725:Chloroform; D000432:Methanol