NOVEL SUBSTANCE NF-861 AND NF-86II AND ALPHA-AMYLASE-INHIBITING AGENT CONTAINING NF-861 AND NF-86II

摘要

NEW MATERIAL:Substances NF-86I and II. The substance NF-86I has the following physicochemical properties: Appearance, brownish-yellowish powder; melting point, not showing clear melting point or decomposition point; element analysis (%), C, 56.30; H, 4.61; N, =0.2; ash, =0.3; mol.wt. (by dialysis tube), 1,000-10,000; solubility, soluble in water and ethanol and insoluble in hexane, ether, ethyl acetate and chloroform; color reaction, positive for ferric chloride reaction and negative for ninhyddrin reaction, p-anisidine-phthalic acid reaction, aniline diphenylamine reaction and Dragendorff reaction; stability, stable in powder state; etc. USE:alpha-Amylase-inhibiting agent useful in treatment of obesity and diabetes, prevention of tooth decay, diet auxiliary agent, etc. PREPARATION:For example, the novel substance is extracted from Areca [seed of Areca catechu L. (the family Palme)].