3,5-dimethyl-4-nitro-1-phenylpyrazole | 5809-38-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3,5-dimethyl-4-nitro-1-phenylpyrazole
• 英文别名: 3,5-dimethyl-4-nitro-1-phenyl-1H-pyrazole
• CAS: 5809-38-1
• 化学式: C₁₁H₁₁N₃O₂
• 分子量: 217.227
• InChiKey: GAAJJXYPIYFOGE-UHFFFAOYSA-N

物化性质

• 熔点：
  103-104 °C
• 沸点：
  344.5±37.0 °C(Predicted)
• 密度：
  1.26±0.1 g/cm3(Predicted)
• 溶解度：
  31.1 [ug/mL]

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  63.6
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2933199090

反应信息

• 作为反应物：
  描述：

  3,5-dimethyl-4-nitro-1-phenylpyrazole 在 palladium 10% on activated carbon 、 甲酸铵 作用下， 以 乙酸乙酯 为溶剂， 以100 %的产率得到3,5-二甲基-1-苯基-1H-吡唑-4-胺
  参考文献：
  名称：

  与吡唑基重氮盐的高度非对映选择性 Heck-Matsuda 反应

  摘要：

  Heck-Matsuda (HM) 反应是一种强大的合成方法，适合在温和条件下形成 C-C 键。我们证明了吡唑基重氮盐是该协议中的合适试剂，使我们能够提供高度取代的环戊烯醇和环戊烯胺，具有出色的非对映选择性和对映选择性控制。

  DOI：

  10.1039/d3nj01724a
• 作为产物：
  描述：

  2,3,4-戊三酮肟 (6ci,7ci,8ci,9ci) 在 水 、 硝酸 作用下， 生成 3,5-dimethyl-4-nitro-1-phenylpyrazole
  参考文献：
  名称：

  Wolff, Justus Liebigs Annalen der Chemie, 1902, vol. 325, p. 137

  摘要：

  DOI：

文献信息

• CHEMICAL SUBSTANCES WHICH INHIBIT THE ENZYMATIC ACTIVITY OF HUMAN KALLIKREIN-RELATED PEPTIDASE 6 (KLK6)
  申请人：Deutsches Krebsforschungszentrum

  公开号：EP3305781A1

  公开（公告）日：2018-04-11

  The invention relates to compounds which are suitable for the treatment of a disease associated with kallikrein-like peptidase 6 overexpression and to pharmaceutical compositions containing such compounds. The invention further relates to a kit of parts comprising such compounds or pharmaceutical compositions.

  这项发明涉及适用于治疗与kallikrein样肽酶6过度表达相关疾病的化合物，以及含有这些化合物的药物组合物。该发明还涉及包括这些化合物或药物组合物的配套工具包。
• Repair of sulfur mustard-induced DNA damage in mammalian cells measured by a host cell reactivation assay
  作者：Z. Matijasevic、M.L. Precopio、J.E. Snyder、D.B. Ludlum

  DOI：10.1093/carcin/22.4.661

  日期：2001.4

  DNA damage is thought to be the initial event that causes sulfur mustard (SM) toxicity, while the ability of cells to repair this damage is thought to provide a degree of natural protection. To investigate the repair process, we have damaged plasmids containing the firefly luciferase gene with either SM or its monofunctional analog, 2-chloroethyl ethyl sulfide (CEES). Damaged plasmids were transfected into wild-type and nucleotide excision repair (NER) deficient Chinese hamster ovary cells; these cells were also transfected with a second reporter plasmid containing Renilla luciferase as an internal control on the efficiency of transfection. Transfected cells were incubated at 37°C for 27 h and then both firefly and Renilla luciferase intensities were measured on the same samples with the dual luciferase reporter assay. Bioluminescence in lysates from cells transfected with damaged plasmid, expressed as a percentage of the bioluminescence from cells transfected with undamaged plasmid, is increased by host cell repair activity. The results show that NER-competent cells have a higher reactivation capacity than NER-deficient cells for plasmids damaged by either SM or CEES. Significantly, NER-competent cells are also more resistant to the toxic effects of SM and CEES, indicating that NER is not only proficient in repairing DNA damage caused by either agent but also in decreasing their toxicity. This host cell repair assay can now be used to determine what other cellular mechanisms protect cells from mustard toxicity and under what conditions these mechanisms are most effective.

  DNA损伤被认为是引起硫芥(SM)毒性的起始事件，而细胞修复这种损伤的能力则被认为提供了一定程度的自然保护。为了研究修复过程，我们使用SM或其单功能类似物2-氯乙基乙基硫化物(CEES)对含有萤火虫荧光素酶基因的质粒进行了损伤。损伤后的质粒被转染到野生型和核苷酸切除修复(NER)缺陷的中国仓鼠卵巢细胞中；这些细胞还转染了第二个报告质粒，其中包含海肾荧光素酶作为转染效率的内部对照。转染后的细胞在37°C下孵育27小时，然后用双荧光素酶报告分析法在同一样本上测量萤火虫和海肾荧光素酶的强度。细胞裂解液中转染了损伤质粒的生物发光，以转染了未损伤质粒的细胞的生物发光的百分比表示，随宿主细胞修复活性而增加。结果显示，对于被SM或CEES损伤的质粒，具有NER能力的细胞比NER缺陷的细胞具有更高的再激活容量。值得注意的是，具有NER能力的细胞对SM和CEES的毒性影响也更具抵抗力，表明NER不仅擅长修复这两种试剂引起的DNA损伤，还能降低它们的毒性。现在，这种宿主细胞修复分析可以用来确定其他哪些细胞机制保护细胞免受芥子气毒性影响及其在这些机制最有效时的条件。
• Reactions of pyrazoles and pyrazolium salts with complex metal hydrides and organometallic reagents. Synthesis of pyrazolines and pyrazolidines
  作者：Purificación Cuadrado、Ana M. González-Nogal、Senén Martínez

  DOI：10.1016/s0040-4020(97)00514-0

  日期：1997.6

  2-Pyrazolin-4-oximes have been synthesized by reaction of 4-nitroso- and 4-nitropyrazoles with complex metal hydrides and organometallic reagents. Furthermore, 4-nitropyrazolium tetrafluoroborates are reactive substrates towards organolithium and Grignard compounds leading to new and highly substituted 4-nitro-3-pyrazolines and 4-nitropyrazolidines. The formation of 3-pyrazolines is regioselective

  2-吡唑啉-4-肟是通过4-亚硝基和4-硝基吡唑与复杂的金属氢化物和有机金属试剂的反应合成的。此外，4-硝基吡唑鎓四氟硼酸盐是有机锂和格氏试剂的反应性底物，从而导致新的和高度取代的4-硝基-3-吡唑啉和4-硝基吡唑烷。3-吡唑啉的形成是区域选择性的，并且当可能存在非对映异构体吡唑烷时，仅获得最稳定的3,4-反式和/或4,5-反式异构体。
• Depsipeptides Featuring a Neutral P1 Are Potent Inhibitors of Kallikrein-Related Peptidase 6 with On-Target Cellular Activity
  作者：Elena De Vita、Peter Schüler、Scott Lovell、Jasmin Lohbeck、Sven Kullmann、Eitan Rabinovich、Amiram Sananes、Bernd Heßling、Veronique Hamon、Niv Papo、Jochen Hess、Edward W. Tate、Nikolas Gunkel、Aubry K. Miller

  DOI：10.1021/acs.jmedchem.8b01106

  日期：2018.10.11

  Kallikrein-related peptidase 6 (KLK6) is a secreted serine protease that belongs to the family of tissue kallikreins (KLKs). Many KLKs are investigated as potential biomarkers for cancer as well as therapeutic drug targets for a number of pathologies. KLK6, in particular, has been implicated in neurodegenerative diseases and cancer, but target validation has been hampered by a lack of selective inhibitors. This work introduces a class of depsipeptidic KLK6 inhibitors, discovered via high-throughput screening, which were found to function as substrate mimics that transiently acylate the catalytic serine of KLK6. Detailed structure-activity relationship studies, aided by in silico modeling, uncovered strict structural requirements for potency, stability, and acyl-enzyme complex half-life. An optimized scaffold, DKFZ-251, demonstrated good selectivity for KLK6 compared to other KLKs, and on-target activity in a cellular assay. Moreover, DKFZ-633, an inhibitor-derived activity based probe, could be used to pull down active endogenous KLK6.
• Regioselective N-arylation of nitroazoles. Determination of the structure of N-arylnitro-azoles on the basis of NMR spectroscopic data and quantum-chemical calculations
  作者：V. A. Chertkov、A. K. Shestakova、D. V. Davydov

  DOI：10.1007/s10593-011-0718-z

  日期：2011.4

  The N-arylation of a series of nitroazoles has been studied with the aid of diaryliodonium salts in the presence of CuI under the action of microwave radiation. It was found that alkylation proceeds regioselectively in each actual case with the formation of one of two possible isomers. The correct structure of the N-arylation products was established on the basis of NMR spectroscopy.