Kallolide A, a new antiinflammatory diterpenoid, and related lactones from the Caribbean octocoral Pseudopterogorgia kallos (Bielschowsky)
作者:Sally A. Look、Mark T. Burch、William Fenical、Qitai Zheng、Jon Clardy
DOI:10.1021/jo00350a061
日期:1985.12
Isolation, Structural Characterization, and Synthesis of a Naturally Occurring Bisfuranopseudopterane Ether: Biskallolide A. Evidence for a Carbocation Intermediate during the Facile Conversion of Kallolide A and Isokallolide A into Various Solvolysis Products
作者:Abimael D. Rodríguez、Jian-Gong Shi、Yan-Ping Shi
DOI:10.1021/jo0001582
日期:2000.5.1
The West Indian alcyonacean Pseudopterogorgia bipinnata (Verrill, 1864) is shown to contain a novel bisditerpenoid ether: biskallolide A (2). The structural assignment of 2 was mainly based on 1D and 2D NMR and MS spectral data and was further confirmed by synthesis. The 2-C-alkoxylation of furanopseudopteranes kallolide A (1) and isokallolide A (8) occurs spontaneously in some solvents and involves