. 2020 Jan 19;25(2):414. doi: 10.3390/molecules25020414
© 2020 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Scheme 37.
N-Sulfonyliminium cyclization cascade.