. 2015 Oct 20;7(1):589–595. doi: 10.1039/c5sc03258j
This journal is © The Royal Society of Chemistry 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Scheme 1. Synthetic routes to 1 and 2.
