. 2019 Jul 24;6(7):190132. doi: 10.1098/rsos.190132
© 2019 The Authors.
Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Scheme 1.
Illustration of the synthesis of the CPCs.