New triterpenic compounds from Swertia chirata

S. Bajaj, Vijender Singh, Mohammed Ali
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引用次数: 1

Abstract

Aim: To study the Phytochemical constituents of dried aerial parts of Swertia chirata Linn (family Gentianaceae). Methods: The ethanolic extract of the aerial parts of plant S. chirata was subjected to column chromatography and was eluted with petroleum ether and chloroform of various concentrations to yield compound SC-1, 2 and 3 and their structures were elucidated on the basis of chemical methods and spectral techniques such as Ultraviolet (UV), Fourier Transform Infrared (FTIR), Hydrogen Nuclear Magnetic Resonance (1HNMR), Carbon Nuclear Magnetic Resonance (13CNMR), and Mass spectrometry (MS). Results: Three compounds were isolated and their structures were determined as (a) Olean-12-ene-18α H-3-one-9α-ol, (b) Olean-12-ene-18α H-3-one-19β-ol and (c) Olean-12-en-18α H-3-one. Conclusion: Chemical and spectral investigation of extract furnished three novel oleanenone triterpene glycosides from the genus Swertia for the first time.
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獐牙菜中新的三萜化合物
目的:研究龙胆科獐牙菜(Swertia chirata Linn)干燥地上部位的植物化学成分。方法:采用柱层析法,用不同浓度的石油醚和氯仿洗脱得到化合物SC-1、2和3,并用紫外(UV)、傅里叶变换红外(FTIR)、氢核磁共振(1HNMR)、碳核磁共振(13CNMR)和质谱(MS)等化学方法和光谱技术对其结构进行鉴定。结果:分离得到3个化合物,结构分别为(a)齐墩12-烯-18α h -3- 1 -9α-醇,(b)齐墩12-烯-18α h -3- 1 -19β-醇和(c)齐墩12-烯-18α h -3- 1。结论:首次从獐牙菜属植物中提取了3种新的齐墩烯酮三萜苷类化合物。
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