Synthesis of risedronate sodium
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摘要: 目的 合成新型抗骨质疏松药利塞膦酸钠。 方法 以烟酸为原料,经酯化、缩合、Willgerodt反应和水解等步骤得到关键中间体3-吡啶乙酸盐酸盐,3-吡啶乙酸盐酸盐与亚磷酸反应后得到利塞膦酸钠。 结果 在合成过程中,通过探讨Willgerodt反应的时间和反应条件以及产率,优化合成路线,提高总反应收率。 结论 此合成路线使利塞膦酸钠的合成方法能较好地适用于工业化生产。Abstract: Objective To synthesis the new anti-osteoporotic risedronate sodium. Methods Nicotinic acid was used as raw material, by esterification, condensation, Willgerodt reaction and hydrolysis steps to get the key intermediate 3-pyridine acetic acid hydrochloride.Then 3-pyridine acetic acid hydrochloride and phosphorous acid reacted to obtain the risedronate sodium. Results The reaction time, reaction conditions and the yield of Willgerodt reaction were explored. The synthetic route was optimized and the total yield of the reactions was increased. Conclusion This synthetic route of risedronate sodium could be applied to industrial production.
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Key words:
- risedronate sodium /
- anti-osteoporotic /
- chemical synthesis
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[1] 杜 蕾, 马培奇. 第三代双磷酸盐类药物利塞膦酸钠[J]. 中国医药情报, 2000, 6(3):1. [2] 郑 珩. 治疗骨质疏松症新药Risedronate Sodium[J]. 药学进展, 1999, 23(3):181. [3] Soc Pour Lind Chim àB1e. Heterocyclic substituted fatty acids and their amide[P]. BP, 558774, 1944-01-20. [4] 王 华, 李 云, 尤启冬, 等. 3-吡啶乙酸盐酸盐的合成[J]. 中国新药杂志, 2004, 13(3):245. [5] Wieczorek M, Stawinski T, Chrulski K. A process for the preparation of risedronic acid[P]. EP, 1243592, 2002-09-25.
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