2,4-二氟苯甲酰肼 | 118737-62-5

• 物质功能分类: 有机原料 - 有机氟化合物 - 氟苯甲酸系列
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,4-二氟苯甲酰肼
• 中文别名: 2,4-二氟苯甲酸酰肼
• 英文名称: 2,4-difluorobenzohydrazide
• 英文别名: 2,4-difluorobenzoic acid hydrazide；2,4-difluorobenzoylhydrazide
• CAS: 118737-62-5
• 化学式: C₇H₆F₂N₂O
• mdl: MFCD00173685
• 分子量: 172.134
• InChiKey: FGBCAURJSKHDGC-UHFFFAOYSA-N

物化性质

• 熔点：
  141 °C
• 密度：
  1.372±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  55.1
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 危险品标志：
  Xi
• 安全说明：
  S22,S36/37/39
• 危险类别码：
  R20/21/22
• 海关编码：
  2928000090
• 危险性防范说明：
  P261,P301+P312,P302+P352,P304+P340,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,4-Difluorobenzoic acid hydrazide
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 2,4-Difluorobenzoic acid hydrazide
CAS number: 118737-62-5

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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.

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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.

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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.

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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:

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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.

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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: C7H6F2N2O
Molecular weight: 172.1

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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 fluoride.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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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.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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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.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2,4-二氟苯甲酰肼 在 potassium permanganate 、 溶剂黄146 、 potassium hydroxide 、 sodium hydroxide 作用下， 以 乙醇 为溶剂， 反应 0.17h， 生成 2-(2,4-Difluorophenyl)-5-ethylsulfonyl-1,3,4-oxadiazole
  参考文献：
  名称：

  Inhibition of Tobacco Bacterial Wilt with Sulfone Derivatives Containing an 1,3,4-Oxadiazole Moiety

  摘要：

  A series of new sulfone compounds containing the 1,3,4-oxadiazole moiety were designed and synthesized. Their structures were identified by H-1 and C-13 nuclear magnetic resonance and elemental analyses. Antibacterial bioassays indicated that most compounds exhibited promising in vitro antibacterial bioactivities against tobacco bacterial wilt at 200 mu g/mL. The relationship between structure and antibacterial activity was also discussed. Among the title compounds, 5'c:, 5'h, 5'i, and 5, could inhibit mycelia growth of Ralstonia solanacearum in vitro by approximately 50% (EC50) at 39.8, 60.3, 47.9, and 32.1 mu g/mL, respectively. Among them, compound 5) was identified as the most promising candidate due to its stronger effect than that of Kocide 3000 [Cu(OH)(2)] within the same concentration range. Field trials demonstrated that the control effect of compound 55 against tobacco bacterial wilt was better than that of the commercial bactericide Saisentong. For the first time, the present work demonstrated that sulfone derivatives containing 1,3,4-oxadiazole can be used to develop potential bactericides for plants.

  DOI：

  10.1021/jf203772d
• 作为产物：
  描述：

  2,4-二氟苯甲酸 在 一水合肼 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 乙腈 为溶剂， 反应 2.0h， 生成 2,4-二氟苯甲酰肼
  参考文献：
  名称：

  N-苄基哌啶和1,3,4-Oxadiazole的新型分子杂合体作为治疗阿尔茨海默氏病的多靶点疗法。

  摘要：

  N-苄基哌啶与取代的5-苯基-1,3,4-恶二唑的多靶点杂种被设计，合成并针对阿尔茨海默氏病（AD）进行了评估。被测化合物对人乙酰胆碱酯酶（hAChE），丁酰胆碱酯酶（hBChE）和β-分泌酶-1（hBACE-1）表现出中度至极强的抑制作用。潜在的铅6g和10f对所有靶标均表现出平衡的抑制特性，碘化丙啶从hAChE的外围阴离子位点大量置换。混合动力车6g和10f还引起了跨越血脑屏障的有利渗透，并且没有针对SH-SY5Y神经母细胞瘤细胞的神经毒性作用。在基于硫黄素T的自体和AChE诱导的实验中，这两种情况均导致Aβ聚集显着分解。在Y迷宫测试中，化合物6g和10f改善了东pol碱所致的认知功能障碍。大鼠脑匀浆的离体研究确定了两种化合物均降低了AChE水平和抗氧化活性。复方6g免疫印迹和免疫组化分析也证实了在莫里斯水迷宫测试中Aβ引起的认知功能障碍的显着改善，其中Aβ和BACE-1蛋白的表达下调

  DOI：

  10.1021/acschemneuro.9b00430
• 作为试剂：
  描述：

  1-{[2-chloro-3-(trifluoromethyl)phenyl]carbonyl}-5-(ethyloxy)-1,2,3,6-tetrahydropyrazine 、 2,4-二氟苯甲酰肼 在 2,4-二氟苯甲酰肼 、 Ether isohexane 作用下， 以 正丁醇 为溶剂， 反应 1.0h， 以to give 7-{[2-chloro-3-(trifluoromethyl)phenyl]carbonyl}-3-(2,4-difluorophenyl)-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyrazine (0.032 g) as a white solid的产率得到7-{[2-chloro-3-(trifluoromethyl)phenyl]carbonyl}-3-(2,4-difluorophenyl)-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyrazine
  参考文献：
  名称：

  5,6,7,8-TETRAHYDRO[1,2,4]TRIAZOLO[4,3-a]PYRAZINE DERIVATIVES AS P2X7 MODULATORS

  摘要：

  本发明提供了式（I）的化合物或其药学上可接受的盐： 其中，A为氢、C1-4烷基、C3-6环烷基、C1-3烷氧基、C1-3烷氧基C1-4烷基、C1-2氟代烷基、卤素、NR6R7、可选取代杂环芳基或可选取代苯基；R1、R2、R3、R4、R5、R6和R7如描述中所定义。 这些化合物或盐被认为可以调节P2X7受体功能，并能够拮抗P2X7受体上ATP的作用。本发明还提供了该化合物或盐在治疗或预防炎症性疼痛、神经病理性疼痛、内脏疼痛、类风湿性关节炎、骨关节炎或神经退行性疾病中的应用。

  公开号：

  US20120157436A1

文献信息

• Amino-triazolopyridine derivatives
  申请人：Hoffmann-La Roche Inc.

  公开号：US06355653B1

  公开（公告）日：2002-03-12

  The invention relates to compounds of formula wherein R1 is a 5 or 6 membered heteroaryl group, containing 1 to 3 heteroatoms, selected from N, O or S, and which groups are optionally substituted by one or two substituents, which are lower alkyl, —(CH2)nOH, halogen or lower alkoxy, and wherein the heteroaryl groups may be optionally linked to the pyrazole ring via an alkylene or alkenyl group, or is phenyl, optionally substituted by one or two substituents being lower alkyl, hydroxy-lower alkyl, halogen, hydroxy or lower alkoxy or is —O(CH2)n,phenyl, benzofuryl, indolyl or benzothiophenyl, or is —S-lower alkyl; R2 and R4 are independently from each other hydrogen, cyano or —S(O)2-phenyl; R3 is hydrogen, halogen or is a 5 or 6 membered heteroaryl group, containing 1 to 3 heteroatoms, selected from N, O or S, and which groups are optionally substituted by one or two substituents, which are lower alkyl, —(CH2)n-aryl, hydroxy, halogen, lower alkoxy, morpholinyl, amino, lower alkylamino or —C(O)NR′2, and wherein R′ is lower alkyl or hydrogen, or is phenyl, optionally substituted by one or two substituents being halogen, lower alkyl, lower alkoxy, amino, di-lower alkyl amino, CF3, —OCF3, —NHC(O)lower alkyl, cyano, —C(O)-lower alkyl, —C(O)O-lower alkyl, —S-lower alkyl, —S(O)2NH-phenyl, —S(O)2-methylpiperazinyl; or is —NR′R″, wherein R′ and R″ are independently from each other hydrogen, —(CH2)nphenyl, which phenyl ring is optionally substituted by halogen or lower alkoxy, —CH(lower alkyl)-phenyl, indan-1-yl, 1,2,3,4-tetrahydro-naphthalen, or cycloalkyl; or is —O-phenyl, which phenyl ring is optionally substituted by halogen, lower alkyl or lower alkoxy, —O-tetrahydronaphthalenyl or —O—CH2-6-methyl-pyridin-2-yl; or is -benzo[1,3]dioxolyl, -1H-indol-5-yl, naphthyl, benzofuran-2-yl, 1,3,4,9-tetrahydro-b-carbolin-2-yl, piperidin-1-yl, pyrrolidin-1-yl, piperazin-4-yl-methyl or morpholinyl; R5 is —NR2, wherein R may be the same or different and is hydrogen, lower alkyl, phenyl, benzyl, —CO-lower alkyl, —CO-lower alkoxy, -lower alkenyl, —CO(CH2)n-phenyl or —COO(CH2)n-phenyl, wherein the phenyl ring is optionally substituted by CF3, lower alkoxy, halogen or lower alkyl, —CO(CH2)3-NHCO-lower alkoxy, —(CH2)n-phenyl, wherein the phenyl ring is optionally substituted by lower alkoxy, CF3 or halogen, or is 4,5-dihydro-1H-imidazol-2-yl-benzoic acid, 1,4,5,6-tetrahydro-pyrimidin-2-yl-benzoic acid or 4,5,6,7-tetrahydro-1H-[1,3]diazepin-2-yl-benzoic acid; n is 0-4 and their pharmaceutically acceptable salts

  该发明涉及以下式的化合物： 其中 R1是一个含有1至3个杂原子（N、O或S）的5或6元杂芳基团，该基团可以选择性地被一个或两个取代基取代，这些取代基可以是较低的烷基、—(CH2)nOH、卤素或较低的烷氧基，其中这些杂芳基团可以选择性地通过烷基或烯基基团与吡唑环连接，或者是苯基，可以选择性地被一个或两个取代基取代，这些取代基可以是较低的烷基、羟基较低烷基、卤素、羟基或较低的烷氧基，或者是—O(CH2)n、苯基、苯并呋喃基、吲哚基或苯并噻吩基，或者是—S-较低烷基； R2和R4彼此独立地是氢、氰基或—S(O)2-苯基； R3是氢、卤素或者是一个含有1至3个杂原子（N、O或S）的5或6元杂芳基团，该基团可以选择性地被一个或两个取代基取代，这些取代基可以是较低的烷基、—(CH2)n-芳基、羟基、卤素、较低的烷氧基、吗啉基、氨基、较低的烷基氨基或—C(O)NR′2，其中R′是较低的烷基或氢，或者是苯基，可以选择性地被一个或两个取代基取代，这些取代基可以是卤素、较低的烷基、较低的烷氧基、氨基、二较低烷基氨基、三氟甲基、—OCF3、—NHC(O)较低烷基、氰基、—C(O)-较低烷基、—C(O)O-较低烷基、—S-较低烷基、—S(O)2NH-苯基、—S(O)2-甲基哌嗪基；或者是—NR′R″，其中R′和R″彼此独立地是氢、—(CH2)n苯基，该苯环可以选择性地被卤素或较低的烷氧基取代，—CH(较低烷基)-苯基、茚基、1,2,3,4-四氢萘基，或环烷基；或者是—O-苯基，该苯环可以选择性地被卤素、较低的烷基或较低的烷氧基取代，—O-四氢萘基或—O—CH2-6-甲基吡啶-2-基；或者是-苯并[1,3]二噁咯基、-1H-吲哚-5-基、萘基、苯并呋喃-2-基、1,3,4,9-四氢-β-咔啉-2-基、哌啶-1-基、吡咯烷-1-基、哌嗪-4-基-甲基或吗啉基； R5是—NR2，其中R可以相同也可以不同，是氢、较低的烷基、苯基、苄基、—CO-较低烷基、—CO-较低烷氧基、-较低烯基、—CO(CH2)n-苯基或—COO(CH2)n-苯基，其中苯环可以选择性地被三氟甲基、较低的烷氧基、卤素或较低的烷基取代，—CO(CH2)3-NHCO-较低烷氧基、—(CH2)n-苯基，其中苯环可以选择性地被较低的烷氧基、三氟甲基或卤素取代，或者是4,5-二氢-1H-咪唑-2-基-苯甲酸、1,4,5,6-四氢-嘧啶-2-基-苯甲酸或4,5,6,7-四氢-1H-[1,3]二氮杂环己-2-基-苯甲酸； n为0-4 及其药学上可接受的盐
• [EN] SELECTIVE HDAC6 INHIBITORS<br/>[FR] INHIBITEURS SÉLECTIFS DE HDAC6
  申请人：ITALFARMACO SPA

  公开号：WO2018189340A1

  公开（公告）日：2018-10-18

  The present invention relates to novel benzohydroxamic compounds of formula (I) and (II) and pharmaceutically acceptable salts, isomers and prodrugs thereof, exhibiting a high selective inhibitory activity against histone deacetylase 6 (HDAC6) enzyme.

  本发明涉及一种新型苯羟羟肟化合物的化学式(I)和(II)，以及其药用可接受的盐、异构体和前药，表现出对组蛋白去乙酰化酶6（HDAC6）酶具有高选择性抑制活性。
• Antibacterial and Antiviral Activities of 1,3,4-Oxadiazole Thioether 4<i>H</i>-Chromen-4-one Derivatives
  作者：Feng Peng、Tingting Liu、Qifan Wang、Fang Liu、Xiao Cao、Jinsong Yang、Liwei Liu、Chengwei Xie、Wei Xue

  DOI：10.1021/acs.jafc.1c03755

  日期：2021.9.22

  inhibitory effects against Xac, Psa, and Xoo. EC50 data exhibited that A8 (19.7 μg/mL) had better antibacterial activity against Xoo than myricetin, BT, and TC. Simultaneously, the mechanism of action of A8 had been verified by SEM. The results of anti-tobacco mosaic virus indicated that A9 had the best in vivo antiviral effect compared with ningnanmycin. From the data of MST, it could be seen that A9 (0.003

  设想了各种 1,3,4-恶二唑硫醚 4 H -chromen-4-one 衍生物。标题化合物对Xac、Psa和Xoo显示出惊人的抑制作用。EC 50数据表明，A8 (19.7 μg/mL) 对Xoo 的抗菌活性优于杨梅素、BT 和 TC。同时，A8的作用机制已通过扫描电镜验证。抗烟草花叶病毒结果表明，与宁南霉素相比，A9的体内抗病毒效果最好。从 MST 的数据可以看出，A9(0.003±0.001μmol/L)表现出很强的结合能力，远优于宁南霉素(2.726±1.301μmol/L)。本研究表明，1,3,4-恶二唑硫醚4H -chromen-4-one衍生物可能成为极具潜力的农用药物。
• [EN] 5,6,7,8-TETRAHYDRO[1,2,4]TRIAZOLO[4,3-a]PYRAZINE DERIVATIVES AS P2X7 MODULATORS<br/>[FR] DÉRIVÉS DE 5,6,7,8-TÉTRAHYDRO[1,2,4]TRIAZOLO[4,3-A]PYRAZINE COMME MODULATEURS DE P2X7
  申请人：GLAXO GROUP LTD

  公开号：WO2010125102A1

  公开（公告）日：2010-11-04

  The present invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof wherein A is hydrogen, C1-4alkyl, C3-6cycloalkyl, C1-3alkoxy, C1-3alkoxy C1-4alkyl, C1-2fluoroalkyl, halogen, NR6 R7, optionally substituted heteroaryl (Het), or optionally substituted phenyl, and R1, R2, R3, R4, R5, R6 and R7 are as defined in the description. The compounds or salts are thought to modulate P2X7 receptor function and to be capable of antagonizing the effects of ATP at the P2X7 receptor. The invention also provides the use of the compound or salt in the treatment or prophylaxis of, for example, inflammatory pain, neuropathic pain, visceral pain, rheumatoid arthritis, osteoarthritis or neurodegenerative disorders.

  本发明提供了一种式(I)化合物或其药学上可接受的盐，其中A为氢、C1-4烷基、C3-6环烷基、C1-3烷氧基、C1-3烷氧基C1-4烷基、C1-2氟烷基、卤素、NR6 R7、任选取代的杂芳基(Het)或任选取代的苯基，且R1、R2、R3、R4、R5、R6和R7如说明书中所定义。这些化合物或盐被认为能够调节P2X7受体功能，并能拮抗ATP在P2X7受体上的作用。本发明还提供了该化合物或盐在治疗或预防例如炎症性疼痛、神经性疼痛、内脏疼痛、类风湿性关节炎、骨关节炎或神经退行性疾病中的用途。
• Selective androgen receptor modulators
  申请人：Miller Chris P.

  公开号：US20090253758A1

  公开（公告）日：2009-10-08

  This invention provides compounds of formulas I, Ia, Ib, Ic, Id, Ie, and or salts thereof, pharmaceutical compositions comprising a compound of formulas I, Ia, Ib, Ic, Id, Ie, and a pharmaceutically acceptable excipient, methods of modulating the androgen receptor, methods of treating diseases beneficially treated by an androgen receptor modulator (e.g., sarcopenia, prostate cancer, contraception, type 2 diabetes related disorders or diseases, anemia, depression, and renal disease) and processes for making compounds of formulas I, Ia, Ib, Ic, Id, Ie, and intermediates useful in the preparation of same.

  本发明提供了公式I、Ia、Ib、Ic、Id、Ie的化合物，以及它们的盐，包含这些化合物的药物组合物和药用辅料，调节雄激素受体方法，治疗可受益于雄激素受体调节剂（例如，肌肉减少症、前列腺癌、避孕、2型糖尿病相关疾病或病症、贫血、抑郁和肾脏疾病）的疾病的方法，以及制造公式I、Ia、Ib、Ic、Id、Ie的化合物和用于制备这些化合物的中间体的过程。