## Smg : Carapolide A, a novel hexanortriterpenoid, and carapolides B and C, novel tetranortriterpenoids have been isolated from the seeds of Varapa procera and have been assigned structures ( 2)) (10) and (11) respectively on the basis of chemical and spectroscopic evidente.
Carapolides d, e and f, novel tetranortriterpenoids from the seeds of carapa grandiflora (meliaceae)
โ Scribed by S.Fon Kimbu; J.Foyere Ayafor; B.Lucas Sondengam; E. Tsamo; Joseph D. Connolly; David S. Rycroft
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 170 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Carapolides D and E, two new ring E cleaved tetranortriterpenoids, and carapolide F, a novel tetranortriterpenoid spirolactone, have been isolated from the seeds of Carapa grandiflora and have been assigned structures (l),(3) and (6) on the basis of their 1 H and 13 C spectroscopic properties.
๐ SIMILAR VOLUMES
Novel cyathane-type diterpenoids, scabronines B -F (1 -5) were isolated from the mushroomSarcodonscabrosus. Their structures were determined by interpretation of their spectral data and chemical transformation. The absolute stereochemistry of scabronine C (2) was confirmed by the exciton chirality m
According to Dreiding molecular models, the C(11)-0 and C(5) portions of sarcodictyin C ((-)-3) are rigidly disposed, and can not approach to one another. In contrast, when the urocanic portion has been removed, the system can be easily bent and C(11)-0-can approach C(5) at bonding distance.