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首页> 外文期刊>Crystal growth & design >Molecular salts of anesthetic lidocaine with dicarboxylic acids: Solid-state properties and a combined structural and spectroscopic study
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Molecular salts of anesthetic lidocaine with dicarboxylic acids: Solid-state properties and a combined structural and spectroscopic study

机译:麻醉性利多卡因与二元羧酸的分子盐:固态性质以及组合的结构和光谱研究

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摘要

Four lidocaine molecular salts of dicarboxylic acids (oxalic, fumaric, malonic, and succinic) were synthesized and characterized by a combined use of X-ray powder and single-crystal diffraction, differential scanning calorimetry, Fourier transform infrared spectroscopy (FT-IR), and solid-state NMR (~1H MAS and CRAMPS, and ~(13)C and ~(15)N CPMAS): all molecular salts show a dramatic increase in their melting point with respect to both lidocaine and lidocaine hydrochloride, and a higher dissolution rate and thermodynamic solubility in physiological solution with respect to the free base.
机译:合成了四种利多卡因二羧酸(草酸,富马酸,丙二酸和琥珀酸)分子盐,并结合使用X射线粉末和单晶衍射,差示扫描量热法,傅里叶变换红外光谱(FT-IR)进行了表征,和固态NMR(〜1H MAS和CRAMPS,以及〜(13)C和〜(15)N CPMAS):相对于利多卡因和盐酸利多卡因,所有分子盐均显示出熔点的急剧升高,并且更高相对于游离碱在生理溶液中的溶解速率和热力学溶解度。

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