首页> 外国专利> A PROCESS FOR THE PREPARATION OF HAEOMOSTATIC AGENT FROM BOERRHAVIA DIFFUSA LINN-PARTICULARLY EFFECTIVE TO STOP INTRA-UTERINE CONTRACEPTIVE DEVICE INDUCED BLEEDING IN WOMEN

A PROCESS FOR THE PREPARATION OF HAEOMOSTATIC AGENT FROM BOERRHAVIA DIFFUSA LINN-PARTICULARLY EFFECTIVE TO STOP INTRA-UTERINE CONTRACEPTIVE DEVICE INDUCED BLEEDING IN WOMEN

机译:一种从菜青虫中制备具有止血作用的止血剂的方法,该止血剂有效地阻止了由妇女引起的子宫内避孕药的出血

摘要

A process for the preparation of a haemostatic agent from the plant Boerrhavia diffusa Linn-particularly effective to stop Intra-Uterine Contraceptive Device induced bleeding in women, when administered orally or parenterally, comprising extracting the plant Boerrhavia diffusa Linn, with 50 to 95 percent aqueous lower alkyl alcohol, concentrating the alcoholic extract below 50 degree under reduced pressure followed by removal of the lipid material as from the alcoholic concentrate by shaking it with petroleum ether or benzene and extracting the active haemostatic constituent by shaking the lipid free alcoholic concentrate with n-butanol saturated with water, removal of the solvent from the n-butanol extract gives an amorphous light yellowish brown powder which is purified by column chromatography over a silica gel column using chloroform and chloroform methanol or ethanol mixture as eluents to yield the desired haemostatic agent as a yellowish amorphous substance.
机译:一种从白花蛇舌草植物中制备止血剂的方法,特别是在口服或胃肠外给药时,对停止子宫内避孕药引起的女性出血特别有效,包括用50%至95%的水溶液提取白花蛇舌草植物低级烷基醇,在减压下将酒精提取物浓缩至低于50度,然后通过与石油醚或苯振摇从酒精浓缩物中除去脂质物质,并通过与n-振摇无脂质酒精浓缩物提取活性止血成分。用水饱和丁醇,从正丁醇萃取物中除去溶剂,得到无定形浅黄棕色粉末,将其通过硅胶柱色谱法纯化,使用氯仿和氯仿甲醇或乙醇混合物作为洗脱剂,得到所需的止血剂:一种淡黄色无定形物质。

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