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. 2019 Dec 2;24(23):4408. doi: 10.3390/molecules24234408

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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 1 — Synthesis of BODIPY-PF-543 (2). Reagents and conditions: (i) NaN₃, DMF, 60 °C, 12 h, 70%; (ii) 4-(bromomethyl)benzaldehyde, K₂CO₃, THF, 50 °C, 8 h, 78%; (iii) (R)-(−)-prolinol, STB, 1,2-dichloroethane, rt, 12 h, 75%; (iv) Na-ascorbate, CuSO₄, t-BuOH/H₂O (1/1), rt, 12 h, 68%.