Disclosed are: kotalanol which has an inhibitory activity on a glucosidase; a method for producing kotalanol or a cyclic sulfonium salt which is an analogue to kotalanol by an organic synthesis technique; a cyclic sulfonium salt produced by the method; a glucosidase inhibitor comprising the compound; an anti-diabetic agent or an anti-diabetic food comprising the glucosidase inhibitor. A sulfonium compound including kotalanol can be produced by coupling a thio-sugar synthesized from D-xylose (e.g., a compound having a cyclic structure composed of 4 carbon atoms and one sulfur atom, such as 1,4-dideoxy-1,4-epithio-D-arabinitol) with a heptitol cyclic sulfate ester having a protected hydroxyl group and synthesized from a pentose (D-xylose, D-ribose, D-arabinose, D-lyxose, L-xylose, L-ribose, L-arabinose or L-lyxose) to produce a cyclic sulfonium salt having a protected hydroxyl group, and then deprotecting the hydroxyl group.
本发明涉及一种对
葡萄糖苷酶具有抑制活性的kotalanol;一种通过有机合成技术制备kotalanol或类似kotalanol的环状亚
磺酸盐的方法;一种通过该方法制备的环状亚
磺酸盐;一种包含该化合物的
葡萄糖苷酶
抑制剂;一种包含该
葡萄糖苷酶
抑制剂的抗糖尿病剂或抗糖尿病食品。可以通过将从
D-木糖合成的
硫代糖(例如,由4个碳原子和1个
硫原子组成的环状结构化合物,如1,4-二去氧-1,4-环
硫-
D-阿拉伯糖醇)与从戊糖(
D-木糖,
D-核糖,
D-阿拉伯糖,D-吕氏
木糖,
L-木糖,
L-核糖,
L-阿拉伯糖或L-吕氏
木糖)合成的带有保护羟基的庚糖环
硫酸酯偶联,以制备具有保护羟基的环状亚
磺酸盐,然后去保护羟基来制备包含kotalanol的亚
磺酸化合物。