Studies on tetranortriterpenoids from Cedrela augustifolia Sessée and Moc
Autor: | Raymond Zelnik, David Lavie, C. Rosito, E.C. Levy |
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Rok vydání: | 1970 |
Předmět: | |
Zdroj: | Tetrahedron. 26:219-226 |
ISSN: | 0040-4020 |
Popis: | Three new bicyclononanolides: angustinolide (I), angustidienolide (IIa) and 2α-hydroxyangusudienolide (III) isolated from Cedrela angustifolia have been identified. Their respective structures were determined by spectroscopic means and chemical transformations leading to known compounds. A relationship was determined between the location of the 17-H signal in the NMR and the position of the double bond in rings C and D in several related compounds. |
Databáze: | OpenAIRE |
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