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. 2019 Apr 1;24(7):1264. doi: 10.3390/molecules24071264

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© 2019 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/).

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Scheme 3 — Grafting of fragment 8 to quinoline moieties. Reagents and conditions: (a) 8 (1.0 equiv), NEt₃ (5.0 equiv), ACN, 0 °C to rt, 0.5 h (12: 71%, 13: 98%); (b) Me₂SO₄ (1.1 equiv), DCE, sealed tube, 50 °C, 24 h (14: 93%, 15: 86%); (c) BNAH (1.0 equiv), DCM, rt, 0.5 h (4: 72%, 16: 80%).