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Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study
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Three new compounds from Dictamnus dasycarpus

Li-Na Guo1, Yue-Hu Pei, Gang Chen

  • 1School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.

Journal of Asian Natural Products Research
|January 18, 2012
PubMed

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Conformation
The simplest example of a diene is 1,3-butadiene, an acyclic conjugated π system. At room temperature, the molecule exists as a mixture of s-cis and s-trans conformers by virtue of rotation around the carbon–carbon single bond. Although the s-trans isomer is more stable, the...