English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The structural assignments of a number of bicyclic alkaloids isolated from frogs have been reassigned or questioned after synthesis of the proposed structures. Herein we report a practical and short formal synthesis of the 5-alkylindolizidine core, from readily available α-amino acids or homoserine that could be utilized to support structural assignments.

A General and Efficient Approach to the Proposed Structures of Frog Toxins: The 5-Alkylindolizidines