Material Safety Data Sheet Section 1. Identification of the substance Product Name: 3-(4-Chloro-phenyl)-1h-pyrazole-4-carbaldehyde Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: 3-(4-Chloro-phenyl)-1h-pyrazole-4-carbaldehyde CAS number: 350997-67-0 Section 4. First aid measures Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing contaminated clothing and shoes. If irritation persists, seek medical attention. Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical attention. Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention. Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention. Section 5. Fire fighting measures In the event of a fire involving this material, alone or in combination with other materials, use dry powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus should be worn. Section 6. Accidental release measures Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national standards. Respiratory precaution: Wear approved mask/respirator Hand precaution: Wear suitable gloves/gauntlets Skin protection: Wear suitable protective clothing Eye protection: Wear suitable eye protection Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container for disposal. See section 12. Environmental precautions: Do not allow material to enter drains or water courses. Section 7. Handling and storage Handling: This product should be handled only by, or under the close supervision of, those properly qualified in the handling and use of potentially hazardous chemicals, who should take into account the fire, health and chemical hazard data given on this sheet. Store in closed vessels. Storage: Section 8. Exposure Controls / Personal protection Engineering Controls: Use only in a chemical fume hood. Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles. General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse. Section 9. Physical and chemical properties Appearance: Not specified Boiling point: No data No data Melting point: Flash point: No data Density: No data Molecular formula: C10H7ClN2O Molecular weight: 206.6 Section 10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride. Section 11. Toxicological information No data. Section 12. Ecological information No data. Section 13. Disposal consideration Arrange disposal as special waste, by licensed disposal company, in consultation with local waste disposal authority, in accordance with national and regional regulations. Section 14. Transportation information Non-harzardous for air and ground transportation. Section 15. Regulatory information No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302, or have known CAS numbers that exceed the threshold reporting levels established by SARA Title III, Section 313.
背景技术对现有抗微生物剂的致病性耐药性的惊人增加是一个严重的问题,并且这些细菌感染的治疗正变得越来越具有挑战性。因此,迫切需要开发新型抗微生物剂。目的作为我们正在进行的新型抗菌剂研究的一部分,一系列(Z)-5-((3-苯基-1H-吡唑-4-基)亚甲基)-2-的合成和抗菌活性在这项研究中将讨论噻吩并噻唑烷-4-酮衍生物。方法设计,合成(Z)-5-((3-苯基-1H-吡唑-4-基)亚甲基)-2-硫代噻唑烷酮-4-一衍生物,并评价其抗菌活性。通过IR,1 H NMR,13 C NMR和质谱确认结构。使用96孔微量滴定板和系列稀释方法在体外评估所有合成的化合物,以获得对多种不同菌株(包括耐多药临床分离株)的最低抑菌浓度(MIC)值。结果体外抗菌测试表明,系列7和9中的大多数化合物对厌氧菌(变形链球菌)菌株均表现出显着的抑制活性,MIC值为1 µg / mL。化合物7c和9c对MRSA的活性最高(3
derivatization, three series of lathyrane diterpenoid derivatives were designed and synthesized based combination principles, including pyrazole, thiazole and furoxan moieties. Biological evaluation indicated that compound 23d exhibited excellently inhibitory activity on LPS-induced NO production in RAW264.7 cells (IC50 = 0.38 ± 0.18 μM). The preliminary structure–activity relationships (SARs) suggested
temperature sensor. However, few TRPM2 inhibitors have been reported, especially TRP-subtype selective inhibitors, which hampers the investigation and validation of TRPM2 as a drug target. To discover novel TRPM2 inhibitors, 3D similarity-based virtual screening method was employed, by which 2,3-dihydroquinazolin-4(1H)-one derivative H1 was identified as a TRPM2 inhibitor. A series of novel 2,3-dihydroquinazolin-4(1H)-one
Mycobacterium tuberculosis and antibacterialactivity against three common pathogenic bacterial strains. Four derivatives (8b, 8c, 8j and 8o) displayed significant antitubercular activity. The compounds derived from 8-trifluoromethylquinoline and 6-fluoroquinoline scaffolds with halogen substitution on the pyrazole ring exhibited superior inhibition activity than corresponding 6-methoxyquinoline analogs.
Synthesis of 3-Substituted Arylpyrazole-4-carboxylic Acids
作者:A. V. Lebedev、A. B. Lebedeva、V. D. Sheludyakov、E. A. Kovaleva、O. L. Ustinova、I. B. Kozhevnikov
DOI:10.1007/s11176-005-0318-7
日期:2005.5
3-aryl-substituted pyrazole-4-carboxylic acids, involving Vilsmeier formylation of semicarbazones of 26 available mono- and disubstituted acetophenones and 2-acetylthiophene followed by oxidation of the resulting 3-aryl-substituted pyrazole-4-carboxaldehydes under the action of potassium permanganate. The mechanism of the formylation reaction is discussed. The method successfully works even with acetophenones
Synthesis and Biological Evaluation of Some Pyrazole Derivatives, Containing (Thio) Semicarbazide, as Dual Anti-Inflammatory Antimicrobial Agents
作者:Zhaochang Liang、Yuping Huang、Shiben Wang、Xianqing Deng
DOI:10.2174/1570180816666190325163117
日期:2019.9.11
Background: Several series of pyrazolederivatives containing (thio) semicarbazide (4a-4h, 5a-5l, 6a-6f, 7a-7c) were designed and synthesized to screen dual inflammatory and antimicrobial activities. Methods: The products were characterized by1H NMR, 13C NMR and HRMS. In vitro LPS-induced TNF-α model and in vivo xylene-induced ear-edema model were used to evaluate their antiinflammatory activity. Their
背景:设计并合成了一系列含有(硫)氨基脲(4a-4h,5a-5l,6a-6f,7a-7c)的吡唑衍生物,以筛选双重炎症和抗菌活性。 方法:通过1 H NMR,13 C NMR和HRMS对产物进行表征。用体外LPS诱导的TNF-α模型和体内二甲苯诱导的耳水肿模型评估其抗炎活性。使用系列稀释法针对几种革兰氏阳性菌株,革兰氏阴性菌株和真菌菌株评估了它们的体外抗菌活性。 结果:生物测定表明,大多数化合物在浓度为20 µg / mL时均可显着抑制TNF-α的表达。化合物5i,6b和7b在50 mg / mL剂量下具有与参考药物地塞米松相当的体内抗炎活性。公斤。此外,几种化合物对不同菌株显示出抗菌活性,化合物5g和5h分别显示对肺炎链球菌CMCC 31968和金黄色葡萄球菌CMCC 25923的有效抑菌活性,MIC值为8 µg / mL。同时具有抗炎和抗微生物活性的化合物7b,应按原样或在衍生后进行研究。