Material Safety Data Sheet Section 1. Identification of the substance Product Name: N-Ethyl 3-Aminobenzenesulfonamide Synonyms: 3-Amino-N-ethylbenzenesulfonamide Section 2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section 3. Composition/information on ingredients. Ingredient name: N-Ethyl 3-Aminobenzenesulfonamide CAS number: 56445-08-0 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: C8H12N2O2S Molecular weight: 200.3 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.
Synthesis and biological evaluation of naphthoquinone analogs as a novel class of proteasome inhibitors
摘要:
Screening of the NCI Diversity Set-1 identified PI-083 (NSC-45382) a proteasome inhibitor selective for cancer over normal cells. Focused libraries of novel compounds based on PI-083 chloronaphthoquinone and sulfonamide moieties were synthesized to gain a better understanding of the structure-activity relationship responsible for chymotrypsin-like proteasome inhibitory activity. This led to the demonstration that the chloronaphthoquinone and the sulfonamide moieties are critical for inhibitory activity. The pyridyl group in PI-083 can be replaced with other heterocyclic groups without significant loss of activity. Molecular modeling studies were also performed to explore the detailed interactions of PI-083 and its derivatives with the beta 5 and beta 6 subunits of the 20S proteasome. The refined model showed an H-bond interaction between the Asp-114 and the sulfonamide moiety of the PI-083 in the beta 6 subunit. (C) 2010 Elsevier Ltd. All rights reserved.
[EN] CHEMICAL COMPOUNDS<br/>[FR] COMPOSÉS CHIMIQUES
申请人:GLAXOSMITHKLINE LLC
公开号:WO2013096153A1
公开(公告)日:2013-06-27
The invention is directed to substituted quinoline derivatives. Specifically, the invention is directed to compounds according to Formula I: wherein R, R1, R2, R3 and R4 are defined herein. The compounds of the invention are inhibitors of lactate dehydrogenase A and can be useful in the treatment of cancer and diseases associated with tumor cell metabolism, such as cancer, and more specifically cancers of the breast, colon, prostate and lung. Accordingly, the invention is further directed to pharmaceutical compositions comprising a compound of the invention. The invention is still further directed to methods of inhibiting lactate dehydrogenase A activity and treatment of disorders associated therewith using a compound of the invention or a pharmaceutical composition comprising a compound of the invention.
Design, synthesis and biological activity evaluation of novel 4-((1-cyclopropyl-3-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl) oxy) pyridine-2-yl) amino derivatives as potent transforming growth factor-β (TGF-β) type I receptor inhibitors
作者:Bin Tan、Xiaomeng Zhang、Xu Quan、Guochuang Zheng、Xue Li、Liwen Zhao、Wei Li、Bo Li
DOI:10.1016/j.bmcl.2020.127339
日期:2020.8
ol-4-yl) oxy) pyridine-2-yl) amino derivatives as ALK5 inhibitors. The optimization led to identification of potent and selective ALK5 inhibitors 12r. The compound 12r exhibited strong inhibitory activity both in vitro and in vivo, and pharmacokinetics study showed an oral bioavailability of 57.6%. Thus, compound 12r may provide as new therapeutic option as ALK5 TGF-βR1 inhibitor.
An efficient and practical synthesis of 2,4-substituted pyrido[4,3-d]pyrimidin-5(6H)-ones
作者:Xinrong Tian、Dominic P. Suarez、William Hoi Hong Li、Allison K. McSherry、Robert M. Sanchez、Michael L. Moore、Jeffrey M. Axten
DOI:10.1016/j.tetlet.2019.151312
日期:2019.12
We describe an efficient synthesis of 2,4-substituted pyrido[4,3-d]pyrimidin-5(6H)-ones, which involves the acid-promoted cyclization of cyano enamine 15 to afford 2,4-bis-thiomethyl pyrido[4,3-d]pyrimidin-5(6H)-one 17 as a key intermediate. Selective displacement of the 4-methylthio group by a wide range of anilines followed by oxidation of the 2-methylthio group and subsquent substitution by amines
我们描述了2,4-取代的吡啶并[4,3- d ]嘧啶-5(6 H)-ones的有效合成,其中涉及酸促成氰基烯胺15的环化反应,从而提供2,4-双-硫代甲基吡啶基并[4,3- d ]嘧啶-5(6 ħ) -酮17,为关键中间体。通过广泛的苯胺选择性置换4-甲硫基,然后氧化2-甲硫基并随后被胺取代,使得能够合成各种2,4-二取代的吡啶并[4,3- d ]嘧啶- 5(6 H)-个。
Thiazole-4-carboxyamide derivatives
申请人:Buettelmann Bernd
公开号:US20060160857A1
公开(公告)日:2006-07-20
The present invention is concerned with novel thiazole 4-carboxyamide derivatives of the general formula (I) and with methods for the preparation thereof, which compounds are useful as metabotropic glutamate receptor antagonists:
wherein R
1
to R
4
are as defined in the specification.
[EN] PYRRAZOLO-PYRIMIDINE DERIVATIVES<br/>[FR] DERIVES DE PYRRAZOLO-PYRIMIDINE
申请人:HOFFMANN LA ROCHE
公开号:WO2005123738A1
公开(公告)日:2005-12-29
The invention relates to compounds of formula (I) wherein R1, R2, R3, R4, R5 and p are as defined in the description and claims as well as to pharmaceutically acceptable salts thereof per se and as pharmaceutically active substances, their manufacture, medicaments based on a compound in accordance with the invention and their production, as well as the use of the compounds in accordance with the invention in the control or prevention of illnesses of the aforementioned kind, and, respectively, for the production of corresponding medicaments.