成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List Faropenem sodium
122547-49-3

Faropenem sodium synthesis

5synthesis methods
Faropenem sodium is an ultra-broad spectrum, β-lactamase resistant, β-lactam antibiotic active against both Gram-positive and Gram-negative bacteria.  It was prepared from Faropenem sodium hemipentahydrate with sodium 2-ethylhexanoic acid by stirring in a 3:1 mixture of THF/H2O for 2 h at room temperature.
-

Yield:122547-49-3 125 g

Reaction Conditions:

with sodium 2-ethylhexanoic acid in tetrahydrofuran;water at 20; for 2 h;

Steps:

5 Example 5
The concentrated product obtained in the above was dissolved in 600 ml of tetrahydrofuran, and a mixed solution of 100.0 g of sodium 2-ethylhexanoate in tetrahydrofuran (200 ml) and water (200 ml) was added and stirred at room temperature for 2 h. A light yellow solid was formed, filtered, and the crude product of faroconin sodium was 147.0g.;_Example 6;_The solid was dissolved in deionized water (2200 ml) at room temperature and acetone was slowly added with stirring until the solution began to become cloudy. When about 750 ml of acetone was added. The solution began to become turbid, stop adding, continue to stir the crystal overnight, pumping, acetone washing, drying, to be white faropernan sodium boutique 125.0g.

References:

Jiangsu Zhengda Qingjiang Pharmaceutical Co., Ltd.;Wang Wuwei;Chen Jie;Gu Haicheng;Wang Wei CN103880864, 2017, B Location in patent:Paragraph 0015; 0038; 0039; 0040; 0041

FullText

Faropenem sodium Related Search: