Uses of synthesis of 2-hydroxyl malonic carbonyl compounds in synthesis of flavonols
A technology of hydroxypropanedicarbonyl and flavonols, applied in organic chemistry and other fields, can solve problems such as large-scale industrial production that cannot be solved
Inactive Publication Date: 2009-02-18
张锋
View PDF0 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Can not solve the problem of large-scale industrial production
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] The present invention will be further described below in conjunction with technical solutions.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
Login to View More
Abstract
The present invention relates to a preparation method of thi-disaccharide compounds. The preparation method comprises the following steps: the thi-disaccharide compound is nitrosylated, reduced with zinc powder-acetic acid, hydrolyzed and processed through diazo reaction to produce 2-hydroxyl thi-disaccharide compounds. The present invention is suitable for synthesizing the myricetin and other types of flavonol medicine and the 2-hydroxyl malonic acid.
Description
technical field [0001] The invention relates to a preparation method of a medicine containing 2-hydroxyl of malonate or propanedicarbonyl compounds, in particular to the synthesis of a natural product flavonol compound such as myricetin. Background technique [0002] Myricetin (Myricetin) synonym myricetin, myricetin, myricetin, Myricetol, Cannabiscetin. It is mainly a kind of polyhydroxy flavonol compound isolated and purified from the bark of Myrica nagi (Myrica nagi) and bark of Myrica nagi (M.rubra). 4',5',-Hexahydroxyflavone (3,5,7,3',4',5'-Hexahydroxyflavone). It has antibacterial, anticancer, enzyme inhibitory, hypoglycemic, platelet activating factor antagonism, liver protection and other effects, and also inhibits the release and metabolism of arachidonic acid induced by rat peritoneal macrophage ionophores; Strong antigonadotropic and antitussive expectorant and diuretic effects. [0003] Myricetin is brownish-yellow needle crystal, mp324℃~326℃, soluble in metha...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/28
Inventor 张锋
Owner 张锋