Novel synthetic steps and intermediates leading to guanidines such as the anti-diabetic compound linogliride. Included is a hydrogen peroxide oxidation of a thiourea (II) to a sulfonic acid (I) which may then be reacted with morpholine to form the carboximidamide (III):
新的合成步骤和中间体,可生成
胍类化合物,如抗糖尿病化合物 linogliride。其中包括
过氧化氢将
硫脲(II)氧化成
磺酸(I),然后与吗啉反应生成羧亚酰胺(III):