The crude glucuronides of the various alcohols were isolated from the urine by extraction with ether or mixtures of ether and ethanol.
各种乙醇的粗葡萄糖醛酸甙从尿中用醚或醚和乙醇混合物提取分离的。
2
As an effective protection for hydroxy group in alcohols and phenols, the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.