. 2020 Mar 23;35(1):773–785. doi: 10.1080/14756366.2020.1740693
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This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Scheme 1.
Synthesis of title compounds 1–24.