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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 (https://creativecommons.org/licenses/by/4.0/).
(a) Experimental and calculated ECD spectra of 1A and 1B. (b) Absolute configurations of 1A (2S, 3S, 4R, 5S, 14S) and its enantiomer 1B (2R, 3R, 4S, 5R, 14R).