3-acetoxymethyl-7α-methoxy-3-cephem-4-carboxylic acid 1,1-dioxide | 104164-02-5

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 3-acetoxymethyl-7α-methoxy-3-cephem-4-carboxylic acid 1,1-dioxide
• 英文别名: 7α-methoxycephalosporanic acid 1,1-dioxide；3-(acetoxymethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid 5,5-dioxide；3-Acetoxymethyl-7-methoxy-5,5,8-trioxo-5lambda*6*-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid；(6R,7S)-3-(acetyloxymethyl)-7-methoxy-5,5,8-trioxo-5λ6-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
• CAS: 104164-02-5
• 化学式: C₁₁H₁₃NO₈S
• 分子量: 319.292
• InChiKey: DEVPUMFMPVTDPD-WCBMZHEXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.1
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  136
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  3-acetoxymethyl-7α-methoxy-3-cephem-4-carboxylic acid 1,1-dioxide 在 草酰氯 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 为溶剂， 生成 3-(acetoxymethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carbonyl chloride 5,5-dioxide
  参考文献：
  名称：

  Inhibition of human leukocyte elastase. 4. Selection of a substituted cephalosporin (L-658,758) as a topical aerosol

  摘要：

  Human leukocyte elastase (HLE) is a serine protease which has been implicated as a causative agent in several pulmonary diseases. The continued modification of our previously reported cephalosporin-based HLE inhibitors has led to the identification of a series of C-2 amides with potent, topical activity in an in vivo hamster lung hemorrhage model. While the most potent in vitro HLE inhibition had previously been obtained with lipophilic ester derivatives, it was found that the less active, but more polar and stable, amide derivatives were much more effective in vivo. The development of the structure-activity relations for optimization of these activities is discussed. These results led to the selection of 3-(acetoxymethyl)-2-[(2(S)-carboxypyrrolidino)carbonyl]-7alpha-methoxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene 5,5-dioxide (3, L-658,758) as a selective, potent, time-dependent HLE inhibitor suitable for formulation as a topical aerosol drug for possible clinical use.

  DOI：

  10.1021/jm00099a002
• 作为产物：
  描述：

  tert-butyl 3-(acetoxymethyl)-7α-methoxy-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylate 5,5-dioxide 在 茴香硫醚 、 三氟乙酸 作用下， 反应 0.5h， 生成 3-acetoxymethyl-7α-methoxy-3-cephem-4-carboxylic acid 1,1-dioxide
  参考文献：
  名称：

  新型人白细胞弹性蛋白酶β-内酰胺抑制剂的合成与评价

  摘要：

  合成并测试了一系列 β-内酰胺衍生物，以确定抑制人类白细胞弹性蛋白酶 (HLE) 的构效关系，HLE 是一种参与多种退行性肺和组织疾病的丝氨酸蛋白酶。使用中性疏水性 7α-甲氧基头孢烷酸衍生物获得最有效的 IC50 值。7α-甲氧基头孢烷酸的色氨酸-9-芴基甲酯和 N-二苯甲基哌嗪衍生物是两种新型 HLE 抑制剂，作用持续时间超过 24 小时。

  DOI：

  10.1139/v01-062

文献信息

• Synthesis and evaluation of new elastase inhibitors. I. 1,1-Dioxocephem-4-thiolesters
  作者：M Alpegiani、A Baici、P Bissolino、P Carminati、G Cassinelli、S Del Nero、G Franceschi、P Orezzi、E Perrone、V Rizzo、N Sacchi

  DOI：10.1016/0223-5234(92)90019-w

  日期：1992.12

  Several 7alpha-chloro and 7alpha-methoxy cephalosporin thiolester sulphones variously substituted at the C-3' position were synthesized from 7-amino-3-deacetoxycephalosporanic acid (7-ADCA). The compounds are time-dependent inhibitors of human leukocyte elastase (HLE) with effective K(i) ranging from micro- to nanomolar values, and second order rate constant reaching 10(6) M-1s-1; they also inhibit porcine pancreatic elastase with similar, though not identical efficiency. Compared to the corresponding cephem esters, the thiolesters of the 7-Cl series inhibit HLE up to 10 times as fast. Complete enzyme inactivation is achieved when a leaving group at C-3' (OAc or S-Het) is present, at the expense however of stability towards hydrolytic beta-lactam cleavage. In the 7-OMe series the thiolester compounds are far more stable and retain good efficiency for irreversible enzyme inhibition, superior to that displayed by the corresponding ester compounds. Three representative compounds (including one ester and two thiolesters) are shown to be effective inhibitors of HLE in the presence of insoluble elastin.
• Inhibition of human leukocyte elastase. 2. Inhibition by substituted cephalosporin esters and amides
  作者：Paul E. Finke、Bonnie M. Ashe、Wilson B. Knight、Alan L. Maycock、Manuel A. Navia、Shrenik K. Shah、Kevan R. Thompson、Dennis J. Underwood、Hazel Weston

  DOI：10.1021/jm00171a029

  日期：1990.9

  A variety of 7 alpha-methoxycephalosporin ester and amide sulfones were prepared and tested to determine the structure-activity relations for inhibition of human leukocyte elastase (HLE), a serine protease which has been implicated in several degenerative lung and tissue diseases. The most potent IC50 values were obtained with neutral, lipophilic derivatives, with the esters being more active than the amides. However, the best time-dependent inhibition in this series was observed with the p- and m-carboxybenzyl esters 7b and 7c. These results are discussed in terms of the proposed mechanism of inhibition as well as a molecular modeling study using the recently solved X-ray crystal structure of HLE.
• FINKE, PAUL E.;ASHE, BONNIE M.;KNIGHT, WILSON B.;MAYCOCK, ALAN L.;NAVIA, +, J. MED. CHEM., 33,(1990) N, C. 2522-2528
  作者：FINKE, PAUL E.、ASHE, BONNIE M.、KNIGHT, WILSON B.、MAYCOCK, ALAN L.、NAVIA, +

  DOI：——

  日期：——
• INTERLEUKIN CONVERTING ENZYME AND APOPTOSIS
  申请人：SMITHKLINE BEECHAM CORPORATION

  公开号：EP0859779A1

  公开（公告）日：1998-08-26
• EP0859779A4
  申请人：——

  公开号：EP0859779A4

  公开（公告）日：2000-04-12