Systematic Study of the Physicochemical Properties of a Homologous Series of Aminobisphosphonates
作者:Aino-Liisa Alanne、Helena Hyvönen、Manu Lahtinen、Markku Ylisirniö、Petri Turhanen、Erkki Kolehmainen、Sirpa Peräniemi、Jouko Vepsäläinen
DOI:10.3390/molecules170910928
日期:——
Aminobisphosphonates, e.g., alendronate and neridronate, are a well known class of molecules used as drugs for various bone diseases. Although these molecules have been available for decades, a detailed understanding of their most important physicochemical properties under comparable conditions is lacking. In this study, ten aminobisphosphonates, H2N(CH2)nC(OH)[P(O)(OH)2]2, in which n = 2–5, 7–11 and 15 have been synthesized. Their aqueous solubility as a function of temperature and pH, pKa-values, thermal stability, IR absorptions, and NMR spectral data for bothliquid (1H, 13C, 31P-NMR) and solid state (13C, 15N and 31P-CPMAS NMR) were determined.
氨基双膦酸盐,例如阿仑膦酸和尼瑞膦酸,是一类广为人知的分子,作为各种骨病的药物使用。尽管这些分子已存在数十年,但对它们在可比条件下最重要的物理化学特性的详细理解仍然缺乏。在这项研究中,合成了十种氨基双膦酸盐,H2N(CH2)nC(OH)[P(O)(OH)2]2,其中n=2-5、7-11和15。测定了它们在不同温度和pH下的水溶性、酸解离常数(pKa值)、热稳定性、红外吸收以及液态(1H、13C、31P-NMR)和固态(13C、15N和31P-CPMAS NMR)的核磁共振光谱数据。