p-nitrobenzoyl 6α-bromopenicillanate 1-oxide | 79634-01-8

• 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: p-nitrobenzoyl 6α-bromopenicillanate 1-oxide
• 英文别名: p-nitrobenzyl 6-bromopenicillanate S-oxide；p-nitrobenzyl 6α-bromopenicillanic acid；p-nitrobenzyl 6-bromopenicillanate 1-oxide；6α-bromopenicillanic acid-S-oxide p-nitrobenzyl ester；p-Nitrobenzyl 6-alpha-bromopenicillanate 1-oxide；(4-nitrophenyl)methyl (2S,5R,6S)-6-bromo-3,3-dimethyl-4,7-dioxo-4lambda4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate；(4-nitrophenyl)methyl (2S,5R,6S)-6-bromo-3,3-dimethyl-4,7-dioxo-4λ4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
• CAS: 79634-01-8
• 化学式: C₁₅H₁₅BrN₂O₆S
• 分子量: 431.264
• InChiKey: WWKGJSLPXULLQB-LMSAUEFISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  129
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  p-nitrobenzoyl 6α-bromopenicillanate 1-oxide 在 碘 作用下， 以 1,4-二氧六环 为溶剂， 反应 8.5h， 生成 (2S,3R,5R,6S)-3-Benzoyloxymethyl-6-bromo-3-methyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester
  参考文献：
  名称：

  Synthesis and .beta.-lactamase inhibitory properties of 2.beta.-[(acyloxy)methyl]-2.alpha.-methylpenam-3.alpha.-carboxylic acid 1,1-dioxides

  摘要：

  p-Nitrobenzyl 2 beta-[(benzoyloxy)methyl]-2 alpha-methylpenam-3 alpha-carboxylate was prepared by reaction of p-nitrobenzyl 2-[2-oxo-3 alpha-bromo-4-(benzothiazol-2-yldithio)azetidin-1-yl] -2-isopropenylacetate with silver benzoate in the presence of iodine. The resulting diester was oxidized to the sulfone with potassium permanganate and hydrogen peroxide, and the bromine and p-nitrobenzyl groups were removed by hydrogenolysis to give potassium 2 beta-(benzoyloxy)methyl 2 alpha-methylpenam-3 alpha-carboxylate 1,1-dioxide. A series of related compounds, including the pivaloyl, methoxybenzoyl, p-fluorobenzoyl, and p-aminobenzoyl derivatives, were prepared in a similar way. All of these compounds were potent beta-lactamase inhibitors in vitro against the TEM beta-lactamase from Klebsiella pneumoniae A22695 and Bacteroides fragiles A22695 but less active against the beta-lactamase from Staphylococcus aureus A9606. All compounds when administered orally in a 1:1 combination with amoxicillin did not show any significant protection of mice infected with S. aureus A9606. 2 beta-(Bromomethyl)-2 alpha-methylpenam-3 alpha-carboxylic acid was prepared and reacted with silver nitrate to give the nitrate ester. Oxidation with potassium permanganate and catalytic reduction afforded 2 beta-(hydroxymethyl)-2 alpha-methylpenam-3 alpha-carboxylic acid 1,1-dioxide. 2 beta-(Bromomethyl)-2 alpha-methylpenam-3 alpha-carboxylic acid 1,1-dioxide was found to be a strong beta-lactamase inhibitor, while the 2 beta-hydroxymethyl compound showed only weak beta-lactamase-inhibiting properties.

  DOI：

  10.1021/jm00382a025
• 作为产物：
  描述：

  6-aminopenicillanic acid 在 氢溴酸 、 potassium carbonate 、 间氯过氧苯甲酸 、 sodium nitrite 作用下， 以 甲醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.42h， 生成 p-nitrobenzoyl 6α-bromopenicillanate 1-oxide
  参考文献：
  名称：

  一种新颖，温和且简便的方法来制备6-亚甲基Penem衍生物

  摘要：

  建立了一种新颖且温和的方法来合成6-亚甲基青霉烯化合物。该方法需要在6-溴openem 12上用适当取代的醛在M- Br 2 / Et 3 N上促进的Aldol型缩合反应，生成中间体乙酰化的溴代醇，将其平滑地转化为最终产物，同时使用C3羧酸酯进行脱保护pH 6.5的活性锌粉尘和磷酸盐缓冲液。该方法为青霉素衍生物的CC键形成方法提供了有用的变化，并且还用作制备6-外亚甲基青霉烯衍生物而在C5位不消旋的实用合成方法。

  DOI：

  10.1021/jo049880g

文献信息

• 1,1-Alkanediol dicarboxylate linked antibacterial agents
  申请人：Pfizer, Inc.

  公开号：US04457924A1

  公开（公告）日：1984-07-03

  Useful antibacterial agents in which a penicillin and/or a beta-lactamase inhibitor are linked via 1,1-alkanediol dicarboxylates are of the formula ##STR1## where A is the residue of certain dicarboxyic acids, R.sup.3 is H or (C.sub.1 -C.sub.3), n is zero or 1 such that when n is zero R is P or B and R.sup.1 is the residue of certain esters, H or a salt thereof; and when n is 1, one of R and R.sup.1 is P and the other is B, and P is ##STR2## where R.sup.2 is H or certain acyl groups, and B is the residue of a beta-lactamase inhibiting carboxylic acid; a method for their use, pharmaceutical compositions thereof and intermediates useful in their production.

  有用的抗菌剂，其中通过1,1-烷二醇二羧酸酯连接了青霉素和/或β-内酰胺酶抑制剂，其化学公式为##STR1##，其中A是某些二羧酸的残基，R.sup.3是H或(C.sub.1-C.sub.3)，n是0或1，当n为0时，R是P或B，R.sup.1是某些酯的残基，H或其盐；当n为1时，R和R.sup.1中的一个为P，另一个为B，P为##STR2##，其中R.sup.2是H或某些酰基团，B是β-内酰胺酶抑制羧酸的残基；其使用方法、药物组合物及其生产中有用的中间体。
• [EN] PROCESS FOR PREPARING 6-ALKYLIDENE PENEM DERIVATIVES<br/>[FR] PROCEDE DE PREPARATION DE DERIVES DE 6-ALKYLIDENE PENEM
  申请人：WYETH CORP

  公开号：WO2003093277A1

  公开（公告）日：2003-11-13

  The present invention provides a process of making compounds of Formula (I), which are useful for the treatment of bacterial infection or disease.

  本发明提供了一种制备化合物的方法，该化合物符合式（I），对于治疗细菌感染或疾病非常有用。
• Process for preparation of penam derivatives
  申请人：Helm AG

  公开号：EP1686131A3

  公开（公告）日：2006-08-16

  The invention relates to novel processes for preparing penam derivatives, such as Tazobactam and derivatives thereof. The processes according to the invention encompass procedures for the protection and deprotection of the carboxylic group as well as for the oxidation of the sulphur moiety of penam derivatives. Additionally, the present invention relates to new intermediates for the production of penam derivatives, allowing the desired penam-derivatives to be formulated with high purity and in good yields.

  本发明涉及一种制备青霉烯衍生物（如他唑巴坦及其衍生物）的新型工艺。根据本发明的工艺包括对羧基的保护和去保护过程，以及对青霉烯衍生物硫基的氧化过程。此外，本发明还涉及用于生产青霉烯衍生物的新中间体，使得所需的青霉烯衍生物可以以高纯度和良好产率制备。
• Synthesis and .beta.-lactamase inhibitory properties of 2.beta.-(chloromethyl)-2.alpha.-methylpenam-3.alpha.-carboxylic acid 1,1-dioxide
  作者：William J. Gottstein、Leonard B. Crast、Robert G. Graham、Ute J. Haynes、Donald N. McGregor

  DOI：10.1021/jm00144a034

  日期：1981.12

  Potassium 2 beta-(chloromethyl)-2 alpha-methylpenam-3 alpha-carboxylate 1,1-dioxide (BL-P2013) and its pivaloyloxymethyl ester were prepared by the conversion of 6-aminopenicillanic acid to p-nitrobenzyl 6 alpha-bromo-2,2-dimethylpenam-3 alpha-carboxylate 1-oxide, which was rearranged with benzoyl chloride and quinoline to p-nitrobenzyl 6 alpha-bromo-2 beta-(chloromethyl)-2 alpha-methylpenam-3 alpha-carboxylate in 65% yield. Oxidation and catalytic hydrogenation afforded BL-P2013, which was found to be a potent inhibitor of various bacterial beta-lactamases and has been found to protect amoxicillin from beta-lactamases in both in vitro and in vivo systems.
• GOTTSTEIN, W. J.
  作者：GOTTSTEIN, W. J.

  DOI：——

  日期：——