DURING experiments on the metabolism of dienÅstrol in man and in animals it was noticed that hydrolysis of dienÅstrol-containing urines, 1 N with respect to hydrochloric acid, always entailed a loss of about 90 per cent of the original Åstrogenic activity. Further, chemical determination of the dienÅstrol content of such urines by the method of Sahasrabudhe and Wilder Smith1 showed an even greater loss of Åstrogen after hydrolysis. In working out the latter method, dienÅstrol was added to benzene extracts of hydrolysed urine, so that the added dienÅstrol escaped the hydrolysis process. Afterwards it was found that hydrolysis of dienÅstrol glucuronide2 under similar conditions gave negligible yields of the free Åstrogen (cf. Stroud3). On the other hand, the same hydrolysis technique (1 N hydrochloric acid, 3 hr. refluxing) gave excellent yields of hexÅstrol from hexÅstrol monoglucuronide. Thus it was suspected that the dilute acid was decomposing the dienÅstrol liberated.
在对人和动物体内的烯雌
酚代谢进行实验时,人们注意到,含烯雌
酚的尿液在
盐酸 1 N 的
水解作用下,总是会损失约 90% 的原始
雌激素活性。此外,用 Sahasrabudhe 和 Wilder Smith1 的方法对此类尿液中的
二烯丙基酚含量进行
化学测定,结果表明,
水解后的
二烯丙基酚损失更大。在研究后一种方法时,在
水解尿液的苯萃取物中添加了烯醇,这样添加的烯醇就逃脱了
水解过程。随后发现,在类似条件下
水解
葡萄糖醛酸二烯醇2 得到的游离Åstrogen 几乎可以忽略不计(参见 Stroud3)。另一方面,采用相同的
水解技术(1 N
盐酸,回流 3 小时)从
己烯雌酚单
葡糖醛酸苷中提取
己烯雌酚的产率极高。因此,人们怀疑稀酸正在分解释放出的二烯醇。