一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
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 Mezlocillin
51481-65-3

Mezlocillin synthesis

1synthesis methods
Mezlocillin, (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(R)-2-[(3-methylsulfonyl)-2- oxoimidazolidin-1-carboxamido]-2-phenylacetamido]-4-thia-1-azabicyclo[3.2.0]-heptan-2- carboxylic acid (32.1.1.27), is synthesized by acylating ampicillin (32.1.1.16) with 3-chlorocarbonyl-1-methansulfonyl-2-imidazolidinone (32.1.1.26) in the presence of triethylamine. The necessary 3-chlorocarbonyl-1-methansulfonyl-2-imidazolidinone (32.1.1.26) is synthesized by sulfonating 2-imidazolidinone with methanesulfonyl chloride, which forms 1-methanesulfonyl-2-imidazolidinone (32.1.1.25) and its subsequent reaction with phosgene.

-

Yield: 90.5%

Reaction Conditions:

with sodium hydroxide in water for 3 h;

References:

Koenig, H.-B.;Metzger, K. G.;Offe, H.-A.;Schroeck, W. [Arzneimittel-Forschung/Drug Research,1983,vol. 33,# 1,p. 88 - 90]

Mezlocillin Related Search:

远安县| 邵阳市| 银川市| 成都市| 新津县| 广平县| 陵水| 吴川市| 呼伦贝尔市| 桂平市| 肇东市| 周至县| 楚雄市| 宁强县| 双柏县| 永吉县| 涿州市| 休宁县| 长兴县| 巴中市| 建昌县| 门头沟区| 馆陶县| 怀宁县| 玉林市| 塘沽区| 甘洛县| 徐州市| 上饶市| 湄潭县| 双鸭山市| 潮州市| 开化县| 四平市| 固始县| 信宜市| 庄浪县| 福建省| 哈密市| 方山县| 江都市|