作者:E. L. GRAVES、T. J. ELLIOTT、W. BRADLEY
DOI:10.1038/162257b0
日期:1948.8
IN a recent communication1, Wyngaarden, Woods and Seevers have shown that ‘Myanesin’ administered intravenously to dogs appears in the urine mainly in combination with glycuronic acid, while a small amount is excreted without change. We have found that after intravenous administration to humans or rabbits, a portion is oxidized and excreted as α-hydroxy-β-(2-methylphenoxy)propionic acid. The acid may
在最近的通讯中,Wyngaarden、Woods 和 Seevers 表明,静脉注射给狗的“Myanesin”主要与葡萄糖醛酸一起出现在尿液中,而少量则没有变化地排出体外。我们发现人或兔静脉给药后,一部分被氧化并以α-羟基-β-(2-甲基苯氧基)丙酸的形式排出体外。酸可以通过将尿液酸化至 pH 3,用乙醚连续提取 24-48 小时,从乙醚提取物转移到碳酸氢钠溶液中,并通过酸化和用乙醚提取从水溶液中回收来分离。溶于乙醚的产物首先从四氯化碳中结晶,然后是水,最后是氯仿。纯酸在 146–147°(校正)熔化(发现:C,61·2;H,6·1;C10H12O4 需要 C,61·2;H,6·1%)。该酸没有旋光活性。它与邻甲酚与 β-氯乳酸缩合得到的酸相同(发现:C,61·1;H,6.1%)。