Cefazedone sodium salt
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Cefazedone sodium salt 속성
안전
| 독성 | LD50 in mice, rats, rabbits, dogs (mg/kg): 6800, 4225, 3200, 3000 i.v. (von Eberstein) |
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Cefazedone sodium salt C화학적 특성, 용도, 생산
Originator
Cefazedone Sodium,Arocor Holdings Inc.Manufacturing Process
A solution of 1 eq. of the tert-butyl ester of 7-aminocephalosporanic acid and 1 eq. of dicyclohexylcarbodiimide in 100 ml of methylene chloride/DMF (1:1) is cooled to 0°C. The mixture is combined with 1 eq. of 3,5-dichloro-4- pyridone-1-acetic acid; after 5 min the ice bath is removed and the mixture agitated for another 30 min at 25°C. The thus-formed urea is filtered off and the filtrate filtered over silica gel (eluent: ethyl acetate/1% methanol). The solvent is concentrated by evaporation, and the thus-obtained tert-butyl ester of 7-(3,5-dichloro-1,4-dihydro-4-oxo-1-pyridylacetamido)cephalosporanic acid is crystallized from ether.1 eq. of the tert-butyl ester is dissolved in 30 ml of trifluoroacetic acid. After 30 minutes, the solution is evaporated and the thus-produced 7-(3,5-dichloro- 1,4-dihydro-4-oxo-1-pyridylacetamido)cephalosporanic acid crystallized from ether.
1 eq. of the obtained 7-(3,5-dichloro-1,4-dihydro-4-oxo-1-pyridylacetamido) cephalosporanic acid is dissolved in 60 ml of saturated aqueous sodium bicarbonate solution at a pH of below 7 and combined with 1 eq. of 5-methyl- 1,3,4-thiadiazole-2-thiol in 20 ml of acetone. The reaction solution is agitated for 2 hours at 80°C and at a pH of 6.3 under a nitrogen atmosphere. The acetone is thereupon removed, the solution is washed with ether and acidified to pH 2. The thus-obtained 3-(1-methyltetrazolyl-5-mercaptomethyl)-7-(3,5- dichloro-1,4-dihydro-4-oxo-1-pyridylacetamido)-3-cephem-4-carboxylic acid is filtered off and dried. IR spectrum confirmed the structure of cefazedone.
In practice it is usually used as sodium salt.
Therapeutic Function
AntibioticCefazedone sodium salt 준비 용품 및 원자재
원자재
5-Methyl-1,3-benzenediacetonitrile
3,5-Dichloro-4-pyridone-N-acetic acid
5-메틸-1,3,4-티아디아졸-2-티올
트리플루오로아세트 산
디사이클로헥실카르보디이미디
준비 용품
Cefazedone sodium salt 공급 업체
글로벌( 43)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49390 | 58 |
| Hebei Runbin Biotechnology Co. LTD | 13180553332 |
2179877681@qq.com | CHINA | 996 | 58 |
| Hebei Henghe Import and Export Trading Co. LTD | +8618032935937 18032916000 |
demi@hbtycoon.com | CHINA | 449 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 |
1026@dideu.com | China | 9320 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 |
1026@dideu.com | China | 29220 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 |
info@dycnchem.com | CHINA | 52867 | 58 |
| changzhou huayang technology co., ltd | +8615250961469 |
2571773637@qq.com | China | 9821 | 58 |
| LEAP CHEM CO., LTD. | +86-852-30606658 |
market18@leapchem.com | China | 24738 | 58 |