3,4-Dihydro-7-methyl-3-oxo-2H-pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde | 1359655-42-7

• 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: 3,4-Dihydro-7-methyl-3-oxo-2H-pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde
• 英文别名: 7-methyl-3-oxo-4H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde
• CAS: 1359655-42-7
• 化学式: C₉H₈N₂O₃
• 分子量: 192.174
• InChiKey: HANCUGYSQLUOSR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  68.3
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3,4-Dihydro-7-methyl-3-oxo-2H-pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde 、 在 三乙酰氧基硼氢化钠 、 溶剂黄146 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 6-[[[1-[[(3R)-5-fluoro-3-hydroxy-11-oxo-1,7-diazatricyclo[6.3.1.04,12]dodeca-4(12),5,7,9-tetraen-3-yl]methyl]-2-oxabicyclo[2.2.2]octan-4-yl]amino]methyl]-7-methyl-4H-pyrido[3,2-b][1,4]oxazin-3-one
  参考文献：
  名称：

  Hydroxy tricyclic 1,5-naphthyridinone oxabicyclooctane-linked novel bacterial topoisomerase inhibitors as broad-spectrum antibacterial agents-SAR of RHS moiety (Part-3)

  摘要：

  Novel bacterial topoisomerase inhibitors (NBTIs) are a new class of broad-spectrum antibacterial agents targeting bacterial Gyrase A and ParC and have potential utility in combating antibiotic resistance. (R)-Hydroxy-1,5-naphthyridinone left-hand side (LHS) oxabicyclooctane linked pyridoxazinone right-hand side (RHS) containing NBTIs showed a potent Gram-positive antibacterial profile. SAR around the RHS moiety, including substitutions around pyridooxazinone, pyridodioxane, and phenyl propenoids has been described. A fluoro substituted pyridoxazinone showed an MIC against Staphylococcus aureus of 0.5 mu g/mL with reduced functional hERG activity (IC50 333 mu M) and good in vivo efficacy [ED90 12 mg/kg, intravenous (iv) and 15 mg/kg, oral (p.o.)]. A pyridodioxane-containing NBTI showed a S. aureus MIC of 0.5 mu g/mL, significantly improved hERG IC50 764 mu M and strong efficacy of 11 mg/kg (iv) and 5 mg/kg (p.o.). A phenyl propenoid series of compounds showed potent antibacterial activity, but also showed potent hERG binding activity. Many of the compounds in the hydroxy-tricyclic series showed strong activity against Acinetobacter baumannii, but reduced activity against Escherichia coli and Pseudomonas aeruginosa. Bicyclic heterocycles appeared to be the best RHS moiety for the hydroxy-tricyclic oxabicyclooctane linked NBTIs. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2015.04.063
• 作为产物：
  描述：

  3-氧代-3,4-二氢-2H-吡啶并[3,2-b][1,4]噁嗪-6-甲醛 在 甲醇 、 manganese(IV) oxide 、 sodium tetrahydroborate 、 palladium bis[bis(diphenylphosphino)ferrocene] dichloride 、 溴 、 potassium carbonate 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 生成 3,4-Dihydro-7-methyl-3-oxo-2H-pyrido[3,2-b]-1,4-oxazine-6-carboxaldehyde
  参考文献：
  名称：

  氧杂双环辛烷连接的1,5-萘吡啶基新型细菌拓扑异构酶抑制剂的吡ido嗪酮取代的RHS类似物作为广谱抗菌剂的结构活性关系（第6部分）

  摘要：

  氧杂双环辛烷连接的1，5-萘啶基-吡啶并恶嗪酮是新型广谱细菌拓扑异构酶抑制剂（NBTI），其靶向细菌DNA促旋酶和拓扑异构酶IV的位置不同于喹诺酮。由于对已知抗生素缺乏交叉耐药性，因此它们提供了抵抗耐药细菌的绝好机会。吡ido嗪酮部分的结构活性关系在该信中描述。已经描述了在吡啶并嗪嗪酮部分的C-3，C-4和C-7处被卤素，烷基和甲氧基取代的NBTI的化学合成和活性。另外，已经报道了连接子NH质子的取代及其转化为AM-8085和AM-8191的酰胺类似物。吡ido并嗪酮部分的C-3处的氟，氯和甲基基团保留了效价和光谱。在金黄色葡萄球菌感染的鼠菌血症模型中，与母体AM-8085相比，其浓度为50 3.9 mg / kg）。吡ido并嗪酮单元的C-3甚至不容许极性适度的极性（例如甲氧基）。当CH 2在接头位置8上时，接头的碱性和NH基团对于活性很重要。然而，具有7位NH或N-甲基基团的酰胺（具有

  DOI：

  10.1016/j.bmcl.2015.06.057

文献信息

• Structure activity relationship of pyridoxazinone substituted RHS analogs of oxabicyclooctane-linked 1,5-naphthyridinyl novel bacterial topoisomerase inhibitors as broad-spectrum antibacterial agents (Part-6)
  作者：Sheo B. Singh、David E. Kaelin、Jin Wu、Lynn Miesel、Christopher M. Tan、Peter T. Meinke、David B. Olsen、Armando Lagrutta、Changqing Wei、Yonggang Liao、Xuanjia Peng、Xiu Wang、Hideyuki Fukuda、Ryuta Kishii、Masaya Takei、Masanobu Yajima、Taku Shibue、Takeshi Shibata、Kohei Ohata、Akinori Nishimura、Yasumichi Fukuda

  DOI：10.1016/j.bmcl.2015.06.057

  日期：2015.9

  Oxabicyclooctane linked 1,5-naphthyridinyl-pyridoxazinones are novel broad-spectrum bacterial topoisomerase inhibitors (NBTIs) targeting bacterial DNA gyrase and topoisomerase IV at a site different than quinolones. Due to lack of cross-resistance to known antibiotics they present excellent opportunity to combat drug-resistant bacteria. A structure activity relationship of the pyridoxazinone moiety is described in

  氧杂双环辛烷连接的1，5-萘啶基-吡啶并恶嗪酮是新型广谱细菌拓扑异构酶抑制剂（NBTI），其靶向细菌DNA促旋酶和拓扑异构酶IV的位置不同于喹诺酮。由于对已知抗生素缺乏交叉耐药性，因此它们提供了抵抗耐药细菌的绝好机会。吡ido嗪酮部分的结构活性关系在该信中描述。已经描述了在吡啶并嗪嗪酮部分的C-3，C-4和C-7处被卤素，烷基和甲氧基取代的NBTI的化学合成和活性。另外，已经报道了连接子NH质子的取代及其转化为AM-8085和AM-8191的酰胺类似物。吡ido并嗪酮部分的C-3处的氟，氯和甲基基团保留了效价和光谱。在金黄色葡萄球菌感染的鼠菌血症模型中，与母体AM-8085相比，其浓度为50 3.9 mg / kg）。吡ido并嗪酮单元的C-3甚至不容许极性适度的极性（例如甲氧基）。当CH 2在接头位置8上时，接头的碱性和NH基团对于活性很重要。然而，具有7位NH或N-甲基基团的酰胺（具有
• Hydroxy tricyclic 1,5-naphthyridinone oxabicyclooctane-linked novel bacterial topoisomerase inhibitors as broad-spectrum antibacterial agents-SAR of RHS moiety (Part-3)
  作者：Sheo B. Singh、David E. Kaelin、Jin Wu、Lynn Miesel、Christopher M. Tan、Charles Gill、Todd Black、Ravi Nargund、Peter T. Meinke、David B. Olsen、Armando Lagrutta、Changqing Wei、Xuanjia Peng、Xiu Wang、Hideyuki Fukuda、Ryuta Kishii、Masaya Takei、Tomoko Takeuchi、Taku Shibue、Kohei Ohata、Hisashi Takano、Shizuka Ban、Akinori Nishimura、Yasumichi Fukuda

  DOI：10.1016/j.bmcl.2015.04.063

  日期：2015.6

  Novel bacterial topoisomerase inhibitors (NBTIs) are a new class of broad-spectrum antibacterial agents targeting bacterial Gyrase A and ParC and have potential utility in combating antibiotic resistance. (R)-Hydroxy-1,5-naphthyridinone left-hand side (LHS) oxabicyclooctane linked pyridoxazinone right-hand side (RHS) containing NBTIs showed a potent Gram-positive antibacterial profile. SAR around the RHS moiety, including substitutions around pyridooxazinone, pyridodioxane, and phenyl propenoids has been described. A fluoro substituted pyridoxazinone showed an MIC against Staphylococcus aureus of 0.5 mu g/mL with reduced functional hERG activity (IC50 333 mu M) and good in vivo efficacy [ED90 12 mg/kg, intravenous (iv) and 15 mg/kg, oral (p.o.)]. A pyridodioxane-containing NBTI showed a S. aureus MIC of 0.5 mu g/mL, significantly improved hERG IC50 764 mu M and strong efficacy of 11 mg/kg (iv) and 5 mg/kg (p.o.). A phenyl propenoid series of compounds showed potent antibacterial activity, but also showed potent hERG binding activity. Many of the compounds in the hydroxy-tricyclic series showed strong activity against Acinetobacter baumannii, but reduced activity against Escherichia coli and Pseudomonas aeruginosa. Bicyclic heterocycles appeared to be the best RHS moiety for the hydroxy-tricyclic oxabicyclooctane linked NBTIs. (C) 2015 Elsevier Ltd. All rights reserved.