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日人小山鹰二、大和正利二氏得知日产薏苡(coix Lachryma-jobi L)①根在日本民间用作驱虫药,并对神经痛、风湿性关节炎、肩凝症等颇有疗效后,便进行研究它的成分.二氏将日产薏苡根用甲连续浸提,再用水蒸气蒸溜,除去有特异嗅气的油状物后,从酸性部分分离出硬脂酸及软脂酸.从溶于苛性碱而不溶于石油醚的部分分离出前人未发现的新成分,定名为薏苡素(coixol),熔点151-152℃,分子式C_8 H_7 O_3 N,并定其构
The Japanese Owl Hawker II and Daisei Lee learned that 1 coix Lachryma-jobi L has been used as an anthelmintic in Japanese folks and has been effective in treating neuralgia, rheumatoid arthritis, and shoulder acne syndrome. , will conduct its research on the ingredients. Second, the Nissan root is continuously extracted with A, and then steam distilled to remove the specific smell of oil after the oil, isolated from the acidic part of stearic acid and palmitic acid. A new component not found in the former was isolated from the caustic alkali insoluble fraction of petroleum ether, and was named coixol with a melting point of 151-152°C and a molecular formula of C_8H_7O_3N.