Material Safety Data Sheet Section 1. Identification of the substance 5-Isopropyl-2-methoxyphenylboronic acid 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. 5-Isopropyl-2-methoxyphenylboronic acid Ingredient name: CAS number: 216393-63-4 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. Store in closed vessels, under −20◦C. 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 Not specified Appearance: Boiling point: No data Melting point: No data Flash point: No data Density: No data Molecular formula: C10H15BO3 Molecular weight: 194.0 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.
New 5-Aryl-1H-imidazoles Display in Vitro Antitumor Activity against Apoptosis-Resistant Cancer Models, Including Melanomas, through Mitochondrial Targeting
摘要:
We designed and synthesized 48 aryl-1H-imidazole derivatives and investigated their in vitro growth inhibitory activity in cancer cell lines known to present various levels of resistance to proapoptotic stimuli. The IC50 in vitro growth inhibitory concentration of these compounds ranged from >100 mu M to single digit mu M. Among the most active compounds, 2i displayed similar in vitro growth inhibition in cancer cells independent of the cells' levels of resistance to proapoptotic stimuli and was found to be cytostatic in melanoma cell lines. Compound 2i was then tested by the National Cancer Institute Human Tumor Cell Line Anti-Cancer Drug Screen, and the NCI COMPARE algorithm did not reveal any correlation between its growth inhibition profiles with the NCI database compound profiles. The use of transcriptomically characterized melanoma models then enabled us to highlight mitochondrial targeting by 2i. This hypothesis was further confirmed by reactive oxygen production measurement and oxygen consumption analysis.
Directing Group‐Promoted Inert C−O Bond Activation Using Versatile Boronic Acid as a Coupling Agent
作者:Ram Ambre、Ting‐Hsuan Wang、Anmei Xian、Yu‐Shiuan Chen、Yu‐Fu Liang、Titel Jurca、Lili Zhao、Tiow‐Gan Ong
DOI:10.1002/chem.202004132
日期:2020.12.18
strategy facilitates the efficient catalytic cross‐coupling of methoxyarenes with a variety of organoboronreagents. Directing groups facilitate the activation of inert C−O bonds in under‐utilized aryl methyl ethers enabling their adaptation for C−C cross‐coupling reactions as less toxic surrogates to the ubiquitous haloarenes. The method reported enables C−C cross‐coupling with readily available and economical
research on the plant metabolitepulchrol, a natural benzochromene which has been shown to possess antiparasitic activity against Trypanosoma and Leishmania species. In a recent study, we investigated how changes in the benzyl alcohol functionality affected the antiparasitic activity, but the importance of B- and C-ring substituents is not understood. Fifteen derivatives of pulchrol with different substituents
被忽视的热带病影响热带国家的大多数贫困人口。其中包括恰加斯病和利什曼病,主要存在于南美洲和中美洲、非洲和东亚。目前的治疗时间长且具有严重的副作用,因此迫切需要开发替代方案。在这项研究中,我们的研究基于植物代谢物 pulchrol,这是一种天然苯并色烯,已被证明对锥虫和利什曼原虫具有抗寄生虫活性。在最近的一项研究中,我们研究了苯甲醇功能的变化如何影响抗寄生虫活性,但 B 环和 C 环取代基的重要性尚不清楚。pulchrol 的 15 种衍生物,在 1、2、3 和 6 位具有不同的取代基,同时保持 A 环完整,因此,通过全合成制备、测定并与 pulchrol 和阳性对照进行比较。生成的系列和亲本分子在体外测试了对克氏锥虫、巴西利什曼原虫和亚马逊乳杆菌的抗寄生虫活性,以及使用 RAW 细胞的细胞毒性。观察到合成的化合物活性存在显着差异,其中一些化合物比阳性对照苯并硝唑对克氏锥虫更有效。一般的趋势是烷基取代基提高效力,尤其是当位于
[EN] CETP INHIBITORS<br/>[FR] INHIBITEURS DE CETP
申请人:MERCK & CO INC
公开号:WO2005100298A1
公开(公告)日:2005-10-27
Compounds of Formula (I), including pharmaceutically acceptable salts of the compounds, are CETP inhibitors, and are useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis. In the compounds of Formula 1, A1 and A2 are each an aromatic ring, a 5-6-membered heterocyclic ring, an aromatic ring fused to a heterocyclic ring, a phenyl ring fused to a heterocyclic ring, or a cycloalkyl ring.
[EN] MELANIN-CONCENTRATING HORMONE RECEPTOR ANTAGONISTS AND COMPOSITIONS AND METHODS RELATED THERETO<br/>[FR] ANTAGONISTES DU RECEPTEUR DE L'HORMONE CONCENTRANT LA MELANINE ET COMPOSITIONS ET METHODES CORRESPONDANTES
申请人:NEUROCRINE BIOSCIENCES INC
公开号:WO2004081005A1
公开(公告)日:2004-09-23
Melanin-concentrating hormone (MCH) receptor antagonists are disclosed having utility for the treatment of MCH receptor-based disorders such as obesity. The compounds of this invention have the following structure: including stereoisomers, prodrugs, and pharmaceutically acceptable salts thereof, wherein m, n, X, R1, R2, R3, R4, and R5 are as defined herein. Also disclosed are compositions containing a compound of this invention, as well as methods relating to the use thereof.
Provided herein are compounds of the formula (I):
as well as pharmaceutically acceptable salts thereof, wherein the substituents are as those disclosed in the specification. These compounds, and the pharmaceutical compositions containing them, are useful for the treatment of diseases such as, for example, obesity, type II diabetes mellitus and metabolic syndrome.