Tetrachyrin, a new rearranged kaurenoid lactone, and diterpene acids from Tetrachyron orizabaensis and Helianthus debilis
作者:Nobuo Ohno、Tom J. Mabry、Volker Zabelt、William H. Watson
DOI:10.1016/0031-9422(79)80184-3
日期:1979.9
Abstract (−)-Kaur-16-en-19-oic acid and tetrachyrin, a new rearranged kaurenoid lactone, were isolated from Tetrachyron orizabaensis var. websteri and Helianthus debilis ssp. debilis . The latter species also afforded angeloylgrandifloric acid.
<i>ENT</i>-KAURENOID METHYL ESTERS FROM<i>Viguiera stenoloba</i>, STRUCTURAL REVISION OF STENOLOBIN AND ITS BIOMIMETIC CONVERSION TO ZOAPATLIN
作者:Guillermo Delgado、Alfonso Romo De Vivar
DOI:10.1246/cl.1984.1237
日期:1984.7.5
The structure of stenolobin, a diterpene from Viguira stenoloba, was revised to 5. The new diterpene, 15α-angeloyloxy stenolobin, was also isolated from the same plant source. The biomimetic transformation of stenolobin (5) to zoapatlin is described.