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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/).
(A) Percentage of sub-G1 peaks in U937 cells after treatment with 2a–c, 4a–c and their respective references compounds 2 and 4, all tested at 1 µM for 24 and 48 h. (B) FACS panel relative to the sub-G1 peaks.