Deoxyandrographolide-19beta-D-glucoside from the leaves of Andrographis paniculata.
A new diterpene glucoside has been isolated from the leaves of Andrographis paniculata and its structure elucidated as deoxyandrographolide-19beta-D-glucoside on the basis of chemical and spectral evidence. A detailed proton magnetic resonance study of the diterpene was crucial in the structure determination.
Weiming
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Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Xiaotian
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