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. 2021 Apr 3;26(7):2052. doi: 10.3390/molecules26072052

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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Scheme 11 — Synthesis of ILs from d-glucuronic acid and d-galacturonic acid (A) [54,55,56,57], and the example, as reported by Ferlin et al. (B) [55].