Material Safety Data Sheet Section 1. Identification of the substance Product Name: Ethyl 2-oxovalerate Synonyms: Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: Ethyl 2-oxovalerate CAS number: 50461-74-0 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: C7H12O3 Molecular weight: 144.2 Section 10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide. 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.
A versatile and highly efficient method for the direct synthesis of α-keto esters and 1,2-diketones has been developed. This approach utilizes the oxidative cleavage of a variety of β-ketoesters and 1,3-diketones mediated by an Oxone/aluminum trichloride system. The simple one-step oxidation reaction proceeded selectively in aqueous media to afford products in high yields, short reaction times, and
Pyranouidole Derivatives and the Use Thereof for the Treatment of Hepatitis C Virus Infection or Disease
申请人:Condon M. Stephen
公开号:US20070219212A1
公开(公告)日:2007-09-20
The invention is directed to novel pyranoindole derivatives and analogs as well as compositions containing the same and to the use thereof for the treatment, prevention or inhibition of viral infections and associated diseases caused by the Hepatitis C virus.
R�action des amines aliphatiques sur les �nolac�tates et �nol�thers des esters des acides ?-c�toniques
作者:Jacques Monnin
DOI:10.1002/hlca.19570400649
日期:——
Sous l'action desaminesaliphatiques, les énolacétates desesters méthyl- et éthylpyruviques sont scindés complètement au niveau du groupement acétoxy avec formation d'esters α-cétoniques et d'acétamides N-substitués.
[EN] METHOD FOR THE USE OF PYRANOINDOLE DERIVATIVES TO TREAT INFECTION WITH HEPATITIS C VIRUS<br/>[FR] METHODE D'UTILISATION DE DERIVES DU PYRANOINDOLE POUR TRAITER UNE INFECTION PAR LE VIRUS DE L'HEPATITE C
申请人:WYETH CORP
公开号:WO2003099275A1
公开(公告)日:2003-12-04
The invention is directed to methods of treating, preventing, or inhibiting a Hepatitis C viral infection in a mammal comprising containing the mammal with an effective amount of a compound of the formula: Wherein substitutions at R1, R2, R3-R12, and Y are set forth in the specification.
[EN] BI-ARYL DIHYDROOROTATE DEHYDROGENASE INHIBITORS<br/>[FR] INHIBITEURS DE LA DIHYDROOROTATE DÉSHYDROGÉNASE BI-ARYLE
申请人:JANSSEN BIOTECH INC
公开号:WO2021070132A1
公开(公告)日:2021-04-15
Disclosed are compounds, compositions and methods for treating diseases, disorders, or medical conditions that are affected by the modulation of DHODH. Such compounds are represented by Formula I as follows: Formula I wherein R1, R2, R3, and Q are defined herein.