Study of polymorphism in 2, 2′-diselenobis(3-pyridinol)
作者:Prasad P. Phadnis、Amit Kunwar、Mukesh Kumar、Ratikanta Mishra、Amey Wadawale、K.I. Priyadarsini、Vimal K. Jain
DOI:10.1016/j.jorganchem.2017.09.029
日期:2017.12
2,2 '- Diselenobis(3-pyridinol), [2-C5H3N(3-OH)Se](2) (DISPOL) (1) and 3-hydroxypyridine-2-(1H) selone (2) were synthesized and characterized by microanalyses, NMR (H-1, C-13H-1}, and Se-77H-1}) spectroscopy. The 1 on recrystallization from various organic and aqueous solutions resulted in different polymorphs which were unambiguously characterized by single crystal X-ray diffraction analyses at room as well as low temperatures. Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and differential thermal analysis (DTA) of 1 confirmed the existence of two polymorphs. The bulk 1 and its polymorphs exhibited potent cytotoxicity against A549 human lung carcinoma cells (IC50 values approximate to 10 mu M). The compound is thermodynamically stable and is a promising candidate for further pharmacological studies as a cytotoxic agent. (C) 2017 Elsevier B.V. All rights reserved.
SMITH K.; MATTHEWS I.; HULME NIGEL M.; MARTIN G. E., J. CHEM. SOC. PERKIN TRANS.,(1986) N 12, 2075-2079
作者:SMITH K.、 MATTHEWS I.、 HULME NIGEL M.、 MARTIN G. E.
DOI:——
日期:——
Smith, Keith; Matthews, Ian; Hulme, Nigel M., Journal of the Chemical Society. Perkin transactions I, 1986, p. 2075 - 2080
作者:Smith, Keith、Matthews, Ian、Hulme, Nigel M.、Martin, Gary E.