A concise approach to the polycyclic scaffold of frondosin D

Masters, Kye-Simeon & Flynn, Bernard L. (2008) A concise approach to the polycyclic scaffold of frondosin D. The Journal of Organic Chemistry, 73(20), pp. 8081-8084.

View at publisher (open access)


Frondosins A−E, 1−5 (Figure 1), are a family of related marine sesquiterpenoids first isolated in their dextro-rotatory form from the sponge Dysidea frondosa.(1a) Additionally, levo-rotatory frondosins A and D were isolated from an unidentified Eurospongia species.(1b) Frondosins A−E are compounds of interest due to their promising interleukin-8 (IL-8) affinity and protein kinase C inhibition.(1a) IL-8 antagonists are of particular interest in view of their antiinflammatory,(2a) anti-HIV,(1b, 2b) and antitumor(2c-2f) properties. To date, frondosins A, B, and C have been synthesized.(3) Notwithstanding these successes, the frondosins have proved quite a formidable synthetic challenge, and as of yet, there has been no synthesis of frondosin D or E. In this report, we describe our approaches to the molecular scaffold of frondosins D. This work has culminated in a very effective means of producing the trimethylbicyclo[5.4.0]undecane ring system common to all frondosins (shown in bold, Figure 1).

Impact and interest:

11 citations in Scopus
Search Google Scholar™
12 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 69688
Item Type: Journal Article
Refereed: Yes
DOI: 10.1021/jo800682n
ISSN: 1520-6904
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MEDICINAL AND BIOMOLECULAR CHEMISTRY (030400)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ORGANIC CHEMISTRY (030500) > Organic Chemical Synthesis (030503)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2008 American Chemical Society
Copyright Statement: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record
Deposited On: 03 Apr 2014 01:44
Last Modified: 02 Jun 2014 05:45

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page