Synthesis of Aspidodispermine via Pericyclic Framework Reconstruction

authored by
Franziska Reuss, Philipp Heretsch
Abstract

A divergent approach to the pyrroloquinoline scaffold as present in the class of Aspidosperma alkaloids was developed. As a case study, abundant and renewable nicotinic acid was transformed via pericyclic framework reconstruction into aspidodispermine, a unique member of pyrroloquinoline alkaloids. The sequence comprises a [2 + 2]-photocycloaddition, a Ramberg-Bäcklund contraction, and a strain-promoted formal electrocyclic rearrangement of a bicyclo[2.2.0]hexene and is potentially extendable to pyrroloindole scaffolds as present in the ibophyllidine alkaloids.

External Organisation(s)
Freie Universität Berlin (FU Berlin)
Type
Article
Journal
Organic letters
Volume
22
Pages
3956-3959
No. of pages
4
ISSN
1523-7060
Publication date
15.05.2020
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Biochemistry, Physical and Theoretical Chemistry, Organic Chemistry
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1021/acs.orglett.0c01242 (Access: Closed)