3-Substituted indole carbohydrazides having the formula
1
are useful for inhibiting angiogenesis and cell proliferation. Also disclosed are compositions which inhibit angiogenesis and cell proliferation and methods of inhibiting angiogenesis and cancer in a mammal.
ANTIDIABETIC ENOLIC GLUCOSIDE OF PHENYLPYRUVIC ACID
申请人:Joubert Elizabeth
公开号:US20130310331A1
公开(公告)日:2013-11-21
There is provided an antidiabetic enolic glucoside of phenylpyruvic acid and derivatives thereof for use as medicaments, especially normoglycemic agents, i.e. for lowering blood glucose levels to normal levels in mammals that are obese, pre-diabetic or have diabetes, obesity and/or syndrome X. Hence the compounds of the present invention help to manage blood sugar levels, i.e. helping the body by balancing the blood sugar levels; helping to keep balanced blood glucose levels, particularly in humans with diabetes; aiding by enhancing the glucose uptake by the cells and by reducing sugar levels, thus improving or restoring the glucose tolerance; optimizing the glycemic response; normalizing the glucose tolerance.
Antidiabetic enolic glucoside of phenylpyruvic acid
申请人:Joubert Elizabeth
公开号:US09221860B2
公开(公告)日:2015-12-29
There is provided an antidiabetic enolic glucoside of phenylpyruvic acid and derivatives thereof for use as medicaments, especially normoglycemic agents, i.e. for lowering blood glucose levels to normal levels in mammals that are obese, pre-diabetic or have diabetes, obesity and/or syndrome X. Hence the compounds of the present invention help to manage blood sugar levels, i.e. helping the body by balancing the blood sugar levels; helping to keep balanced blood glucose levels, particularly in humans with diabetes; aiding by enhancing the glucose uptake by the cells and by reducing sugar levels, thus improving or restoring the glucose tolerance; optimizing the glycemic response; normalizing the glucose tolerance.
A palladium-catalyzedHeckreaction between 2-oxyacrylates and arylbromides was developed, where DavePhos was a unique ligand that efficiently promoted the reaction. The products, 2-oxycinnamates, served as excellent precursors, providing synthetically useful monoaryl pyruvates or ortho ester-protected monoaryl pyruvates depending on the nature of the 2-oxy group. The formation of such ortho esters
The present invention is directed to a method for purifying pyruvic acid compounds, which method comprises reacting a pyruvic acid compound of general formula (I):
wherein R1 is an optionally substituted lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, an aryl group, or a heterocyclic group, and R2 is a lower alkyl group, with a bisulfite of general formula (II):
MHSO3 (II)
wherein M is NH4 or an alkali metal, to give a bisulfite adduct of the pyruvic acid compound and then decomposing the adduct with an acid. According to the present invention, pyruvic acid compounds can be purified by simple and easy procedures without using purification techniques such as distillation or column chromatography, and the above method is advantageous as a process for the production on an industrial scale.
本发明涉及一种纯化丙酮酸化合物的方法,该方法包括使通式(I)的丙酮酸化合物反应:
其中 R1 是任选取代的低级烷基、低级烯基、低级炔基、环烷基、芳基或杂环基,R2 是低级烷基,与通式(II)的亚硫酸氢盐反应:
MHSO3 (II)
其中 M 为 NH4 或碱金属,以得到丙酮酸化合物的亚硫酸氢盐加合物,然后用酸分解该加合物。根据本发明,丙酮酸化合物可以通过简单易行的程序进行纯化,而无需使用蒸馏或柱层析等纯化技术,上述方法作为一种工业规模的生产工艺是非常有利的。