. 2014 Oct 17;6(2):945–955. doi: 10.1039/c4sc02285h
This journal is © The Royal Society of Chemistry 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Scheme 4.
