Material Safety Data Sheet Section 1. Identification of the substance N-Cyclopropyl-4-nitrobenzenesulfonamide Product Name: Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. H315: Causes skin irritation H319: Causes serious eye irritation H335: May cause respiratory irritation P261: Avoid breathing dust/fume/gas/mist/vapours/spray Wear protective gloves/protective clothing/eye protection/face protection P280: P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing P405: Store locked up Section 3. Composition/information on ingredients. N-Cyclopropyl-4-nitrobenzenesulfonamide Ingredient name: CAS number: 549476-61-1 Section 4. First aid measures Immediately wash skin with copious amounts of water for at least 15 minutes while removing Skin contact: 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. Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention. Ingestion: 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. Storage: Store in closed vessels. 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 Not specified Appearance: Boiling point: No data Melting point: No data Flash point: No data Density: No data Molecular formula: C9H10N2O4S Molecular weight: 242.3 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, sulfur oxides. 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.
Development of a Robust Process for the Preparation of High-Quality Dicyclopropylamine Hydrochloride
摘要:
A short and efficient process for the preparation of high-quality dicyclopropylamine HCl salt is described. An oxygen-mediated Chan-Lam coupling of N-cyclopropyl 4-nitrobenzenesulfonamide with cyclopropylboronic acid was followed by an optimized p-nosyl deprotection with 1-decanethiol, providing the title compound in high chemical yield. This process addresses many of the challenges and liabilities inherent in previous synthetic approaches to this challenging molecule. The collection of key safety data enabled implementation of an oxygen-mediated process on-scale and ensured safe operation throughout development, optimization, and processing.
Copper-Catalyzed One-Pot Approach to α-Aryl Amidines via Truce-Smiles Rearrangement
作者:Ying Huang、Weiyin Yi、Qihui Sun、Fengping Yi
DOI:10.1002/adsc.201800490
日期:2018.8.17
A copper‐catalyzed one‐pot approach to α‐aryl amidines from terminal alkynes, sulfonyl azides, and aryl sulfonamides via a Truce‐Smiles rearrangement under mild condition in good to excellent yields was reported for the first time. The formation of such aryl‐sp3 C−C bond previously could not be directly achieved by the common method. The stoichiometry of substrates played an important role in improving
首次报道了在温和条件下通过Truce-Smiles重排以良好或优异的收率通过末端催化的炔烃,磺酰叠氮化物和芳基磺酰胺的铜催化单锅法。这种芳基-sp 3 C-C键的形成以前无法通过常规方法直接实现。底物的化学计量在提高所需产物的产率中起重要作用。此外,在α-芳基am的1 H NMR光谱中观察到两组信号,并且还通过对照实验研究了它们的可能原因。
Diastereoselective Photoredox-Catalyzed [3 + 2] Cycloadditions of <i>N</i>-Sulfonyl Cyclopropylamines with Electron-Deficient Olefins
作者:Dawn H. White、Adam Noble、Kevin I. Booker-Milburn、Varinder K. Aggarwal
DOI:10.1021/acs.orglett.1c00711
日期:2021.4.16
A highly diastereoselective, visible-light-induced [3 + 2] cycloaddition between N-sulfonyl cyclopropylamines and electron-deficient olefins is reported. The reactions proceed via the oxidation of a sulfonamide aza-anion by an organic photocatalyst to generate a nitrogen-centered radical. Strain-induced ring opening and intermolecular addition to the olefin generate an intermediate carbon-centered
The rearrangement of isopropyl-containing nitrogen-containing compounds allows the skeletal reorganization to cyclic and elongated functionalized systems. An unprecedented tandem C−N bond cleavage / C−C and C−N bond formation through the generation of a dication is shown.
Synthesis and biological evaluation of norcantharidin derivatives as protein phosphatase-1 inhibitors
作者:Jie Zhao、Xiao-Wen Guan、Shi-Wu Chen、Ling Hui
DOI:10.1016/j.bmcl.2014.11.032
日期:2015.1
Cantharidin and norcantharidin display anticancer activity against a broad range of tumor cell lines. In this study, we have synthesized a series of norcantharidin derivatives and evaluated their cytotoxic effects on four human tumor cell lines together with the genetically normal human diploid fibroblast line WI-38. One of our compounds (1S,4R)-3-((4-(4-(4-fluorophenyl) piperazin-1-ylsulfonyl) phenyl) carbamoyl)-7-oxa-bicyclo[2.2.1] heptane-2-carboxylic acid (12) exhibited potent cytotoxic effects on the tumor cell lines A-549, HepG2, HeLa, and HCT-8, whereas it was less toxic to WI-38 cells than its parent compound, norcantharidin. In addition, this compound inhibited protein phosphatase-1 activity and microtubule formation in HeLa cells, and it also interacts with calf thymus DNA. (C) 2014 Elsevier Ltd. All rights reserved.
[EN] METHOD FOR PREPARING INTERMEDIATE OF PHTHALAZINONE DERIVATIVE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN INTERMÉDIAIRE DE DÉRIVÉ DE PHTALAZINONE<br/>[KO] 프탈라지논 유도체의 중간체의 제조방법
申请人:[en]IDIENCE CO., LTD.;[ko]아이디언스 주식회사
公开号:WO2024025389A1
公开(公告)日:2024-02-01
본 발명은 PARP 저해제((Poly (ADP-ribose) polymerase) inhibitor)인 프탈라지논 유도체의 제조방법과 그 제조방법에 사용되는 중간체 및 그의 산부가염의 제조방법에 관한 것이다.