Skip to main content
. Author manuscript; available in PMC: 2017 Aug 14.
Published in final edited form as: Chem Rev. 2016 Jun 17;116(14):7818–7853. doi: 10.1021/acs.chemrev.6b00024

Figure 16.

Figure 16

Structures of the atropisomers of streptorubin B discovered in the course of stereochemical studies by Challis and co-workers79 and synthetic studies by Thomson and co-workers.66 The natural product has the 7′S absolute configuration as shown, and the n-butyl side chain is oriented anti to the exocyclic methine group in the thermodynamically more stable atropisomer.