isoxazoline heterocycles that have similar structural features to the commercially used phenylpyrazole, fipronil. Synthesis of the appropriately substituted styrenes and phenylacetylenes is followed by 1,3-dipolar cycloaddition reaction with several aliphatic nitrile oxides, which are prepared in situ from aldoximes with bleach. Relative reaction rates were determined for these specialized alkene and
[EN] BICYCLIC KETONE COMPOUNDS AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS CÉTONIQUES BICYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:HOFFMANN LA ROCHE
公开号:WO2019012063A1
公开(公告)日:2019-01-17
The invention provides novel compounds having the general formula (I): (I) wherein R1, the A ring and the B ring are as described herein, pharmaceutical compositions including the compounds, and methods of using the compounds.
The lead tetraacetate oxidation of aldoximes at low temperature has benn studied. Oxidation of aliphatic and aromatic syn-aldoximes affords nitrile oxides. Aliphatic anti-aldoximes lead to dimeric 1-acetoxy-1-nitroso-alkanes and secondary products. Aromatic anti-aldoximes afford arylaldazine-bis-N-oxides which decompose on heating to nitrile oxides and aldoximes. Mechanisms are proposed which require
已经研究了在低温下醛肟的四乙酸铅氧化。脂族和芳族合成醛肟的氧化提供了腈氧化物。脂肪族抗醛肟导致二聚的1-乙酰氧基-1-亚硝基-烷烃和副产物。芳族抗醛肟类化合物提供芳基aldazine - bis -N-氧化物,该化合物在加热时分解为腈氧化物和醛肟类。被提出的机制需要亚氨氧基自由基如在氧化的中间体反-aldoximes,而氧化顺-aldoximes出现协调一致地进行。
T-형 칼슘 채널에 활성을 가지는 피롤리딘 또는 피페리딘 화합물
申请人:KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 한국과학기술연구원(319980077518) BRN ▼209-82-03522
公开号:KR20200022710A
公开(公告)日:2020-03-04
본 발명은 T-형 칼슘 채널에 활성을 가지는 피롤리딘 또는 피페리딘 화합물에 대한 것으로, 더욱 자세하게는 본 발명에 따른 화학식 1로 표시되는 피롤리딘 또는 피페리딘 화합물은, T-형 칼슘채널에 대하여 우수한 길항작용을 가지고 있어서, 간질, 고혈압 등의 뇌질환, 협심증 등의 심장질환, 만성 통증, 신경성 통증 등의 통증질환, 또는 암과 관련 질병의 예방 또는 치료제로서 유용하게 사용될 수 있다.
Annulation of Oxime‐Ether Tethered Donor–Acceptor Cyclopropanes
作者:Lauren C. Irwin、Meredith A. Allen、Matthew R. Vriesen、Michael A. Kerr
DOI:10.1002/chem.201904521
日期:2020.1.2
cyclopropanes, when exposed to Yb(OTf)3 and heat, annulate to generate hydropyrrolo-oxazines products that can be taken to their respective pyrrolidines via hydrogenative N-O bond cleavage. The hydropyrrolo-oxazines are generated in a diastereoselective manner isolating the cis or trans product based on the temperature of the reaction. 20 examples of selective cis and trans hydropyrrolo-oxazines were generated