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甲基多巴

甲基多巴

CAS号:555-30-6
英文名:L-(-)-α-Methyldopa
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化合物简介
Methyldopa (L-α-Methyl-3,4-dihydroxyphenylalanine; Aldomet, Aldoril, Dopamet, Dopegyt, etc.) is a centrally acting antihypertensive agent. It is metabolized to alpha-methylnorepinephrine in the brain, and this compound is thought to activate central alpha-2 adrenergic receptors (Gerber, 1990). Being a selective agonist for α2 adrenergic receptors, psychoactive drug is used as a sympatholytic or antihypertensive. Its use is now mostly deprecated following the introduction of alternative safer classes of agents. However, it continues to have a role in otherwise difficult to treat hypertension and gestational hypertension (previously known as pregnancy-induced hypertension (PIH)).
基本信息
编号系统
物化性质
安全信息
生产方法及用途
生产方法
一、生产方法简述 将香兰醛用硫酸二甲酯甲基化为藜芦醛,再与硝基乙烷缩合得到1-(2-硝基丙烯基)-3',4'-二甲氧基苯,用铁粉还原并经水解后生成3',4'-二甲氧基苯丙酮(见149
45),然后经环合、开环、水解反应得到DL-甲基多巴,拆分出左旋物即得甲基多巴。
用途
左旋甲基多巴是一种B-受体阻滞型心血管药物,对中等程序的原发性和肾性高血压有良好疗效。
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中国29181990902019-03查看