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Planta Med. 1991 Dec;57(6):566-8.

New Indole Alkaloids from Amsonia sinensis.

Author information

1
Institute of Materia Medica, Chinese Academy of Medical Sciences, 1 Xian Nong Tan Street, Beijing 100050, People's Republic of China.

Abstract

Fourteen indole alkaloids, Delta (14)-isoeburnamine ( 1), amsosinine ( 2), tabersonine, vincadifformine, lochnericine, tetrahydroalstonine, beta-yohimbine, isoeburnamine, minovicinine, picrinine, strictamine, rhazimine, vincanidine, and decarbomethoxytetrahydrosecamine, were isolated from AMSONIA SINENSIS. Delta (14)-isoeburnamine ( 1) and amsosinine ( 2) are new compounds, their structures have been established by spectral and chemical methods. A known sterol glycoside, daucosterol, has also been obtained. The structures of compounds 1 and 2 were finally confirmed by X-ray diffraction of single crystals.

PMID:
17226203
DOI:
10.1055/s-2006-960207

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