3-Pyridinecarbonyl chloride, 4-hydroxy-6-methyl- | 57658-62-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 3-Pyridinecarbonyl chloride, 4-hydroxy-6-methyl-
• 英文别名: 6-methyl-4-oxo-1H-pyridine-3-carbonyl chloride
• CAS: 57658-62-5
• 化学式: C₇H₆ClNO₂
• 分子量: 171.58
• InChiKey: NFCOMSWTXXJUQZ-UHFFFAOYSA-N

物化性质

• 沸点：
  424.5±45.0 °C(Predicted)
• 密度：
  1.386±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  46.2
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• US4068074A
  申请人：——

  公开号：US4068074A

  公开（公告）日：1978-01-10
• [EN] AN ENZYMATIC PROCESS FOR PREPARING BETA-LACTAMS<br/>[FR] PROCEDE ENZYMATIQUE DE PREPARATION DE BETA-LACTAMES
  申请人：BIOFERMA MURCIA S A

  公开号：WO2004020651A1

  公开（公告）日：2004-03-11

  An enzymatic process under kinetical control for preparing β-lactams, by coupling the 7-amino group of a cephalosporin nucleus with the carboxylic function of an acetic acid derivative consisting of a residue with π-electrons, a short spacer and a carboxylic function activated as hydroxyethylester. The process comprises using a penicillin amidase or α-amino acid esterase as free enzyme or in any suitable immobilised form; applying at least 100 mmol/l cephalosporin nucleus, applying the acetic acid derivative activated as hydroxyethylester in a 1 - 3 fold molar ratio, and adjusting the pH to 6.0 - 8.0 and the temperature to 0 - 30°C.
• [EN] AN ENZYMATIC PROCESS FOR PREPARING BETA-LACTAMS<br/>[FR] PROCESSUS ENZYMATIQUE DE PREPARATION DE BETA-LACTAMES
  申请人：BIOFERMA MURCIA S A

  公开号：WO2004020652A2

  公开（公告）日：2004-03-11

  An enzymatic process under kinetical control for preparing ß-lactams, by coupling the 7-amino group of 7-ACA with the carboxylic function of TZH activated as methyl- or ethylester. The process comprises using a penicillin amidase or a-amino acid esterase as free enzyme or in any suitable immobilised form; applying at least 100 mmol/l 7-ACA, applying TZH activated as ester a 1 - 3 fold molar ratio, and adjusting the pH to 6.0 - 8.0 and the temperature to 0 - 30°C. For direct 3-processing of the enzymatically synthesised TZ-7-ACA with heterocyclic thiols in aqueous solution at pH 6.0 - 8.5 and 50 - 75°C a dark brown colour is formed. Surprisingly this can be avoided, if 7-ACA is removed almost completely, advantageously by salting out the 7-derivative of 7-ACA. In said process the heterocylic thiol is MMTD or 2MTD and the formed product is cefazolin or ceftezol.
• [EN] AN ENZYMATIC PROCESS FOR PREPARING beta-LACTAMS<br/>[FR] PROCEDE ENZYMATIQUE DESTINE A LA PREPARATION DE DOLLAR G(B)-LACTAMES
  申请人：BIOFERMA MURCIA S A

  公开号：WO2004020649A1

  公开（公告）日：2004-03-11

  An enzymatic process under thermodynamical control for preparing b-lactams, by coupling the 7-amino group of a cephalosporin nucleus with the carboxylic function of an acetic acid derivative consisting of a residue with p-electrons, a short spacer and a carboxylic function. The process comprises using a penicillin amidase as free enzyme or in any suitable immobilised form; applying no or maximum 10 % organic solvent, applying at least 100 mmol/l cephalosporin nucleus, applying the free acetic acid derivative in a 3 - 5 fold molar ratio, reducing the pH by acid according the reaction progress from initially pH 7.5 - 6.25 to pH 6.25 - 5.0 and adjusting 10 - 40°C.
• [EN] AN ENZYMATIC PROCESS FOR PREPARING BETA-LACTAMS<br/>[FR] PROCEDE ENZYMATIQUE DE PREPARATION DE BETA-LACTAMINES
  申请人：BIOFERMA MURCIA S A

  公开号：WO2004020650A2

  公开（公告）日：2004-03-11

  An enzymatic process under kinetical control for preparing b-lactams, by coupling the 7-amino group of a cephalosporin nucleus with the carboxylic function of an acetic acid derivative consisting of a residue with p-electrons, a short spacer and a carboxylic function activated as methyl- or ethylester. The process comprises using a penicillin amidase or a-amino acid esterase as free enzyme or in any suitable immobilised form; applying at least 100 mmol/l cephalosporin nucleus as long as it is soluble, otherwise 50 - 100 % of its maximum solubility is charged, applying the acetic acid activated as ester in a 1 - 3 fold molar ratio, and adjusting the pH to 6.0 - 8.0 and the temperature to 0 - 30°C.