Synthesis and growth-inhibitory activities of imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamides related to the anti-tumour drug temozolomide, with appended silicon, benzyl and heteromethyl groups at the 3-position
Glycal Metallanitrenes for 2-Amino Sugar Synthesis: Amidoglycosylation of Gulal-, Allal-, Glucal-, and Galactal 3-Carbamates
作者:Simran Buttar、Julia Caine、Evelyne Goné、Reneé Harris、Jennifer Gillman、Roxanne Atienza、Ritu Gupta、Kimberly M. Sogi、Lauren Jain、Nadia C. Abascal、Yetta Levine、Lindsay M. Repka、Christian M. Rojas
DOI:10.1021/acs.joc.8b00893
日期:2018.8.3
stereoselectivity depending on substrate stereochemistry and protectinggroups. In addition, some substrates were prone to forming C3-oxidized dihydropyranone byproducts under the reaction conditions. Allal- and gulal 3-carbamates provided uniformly high stereo- and chemoselectivity, while for glucal substrates, acyclic, electron-withdrawing protectinggroups at the 4O and 6O positions were required. Galactal
铑(II)催化3-氨基甲酸酯的氧化环化,并在异头位置就位掺入醇亲核试剂,可提供一系列具有1,2-反式-2,3-顺式立体化学的2-氨基糖,存在于具有医学和生物学意义的化合物中的结构基序,例如抗生素的链霉素类和几丁质酶抑制剂异源胺。所有非对映体的d已经研究了3-氨基甲酸酯基-氨基甲酸酯,其揭示了取决于底物立体化学和保护基的异头异构体立体选择性的显着差异。另外,一些底物在反应条件下易于形成C3-氧化的二氢吡喃酮副产物。醛基和基醛的3种氨基甲酸酯可提供均一的高立体选择性和化学选择性,而对于葡萄糖底物,则需要在4 O和6 O位置具有无环吸电子保护基。半乳糖3-氨基甲酸酯一直是最具挑战性的底物。吸电子的6 O -Ts取代基和空间上需要的4 O形成酰胺糖基化产物最有效-TBS组。这些结果表明了一种机制,构象和电子因素决定了中间体酰基亚硝基化合物在烯烃加成之间的分配,从而导致酰胺基糖基化和C3-H插入,从
[EN] 9-SUBSTITUTED AMINO TRIAZOLO QUINAZOLINE DERIVATIVES AS ADENOSINE RECEPTOR ANTAGONISTS, PHARMACEUTICAL COMPOSITIONS AND THEIR USE<br/>[FR] DÉRIVÉS AMINO TRIAZOLO QUINAZOLINE 9-SUBSTITUÉS UTILES EN TANT QU'ANTAGONISTES DU RÉCEPTEUR DE L'ADÉNOSINE, COMPOSITIONS PHARMACEUTIQUES ET LEUR UTILISATION
申请人:MERCK SHARP & DOHME
公开号:WO2020112700A1
公开(公告)日:2020-06-04
In its many embodiments, the present invention provides certain 9-substituted amino triazolo quinazoline compounds of the structural Formula (I): (I), and pharmaceutically acceptable salts thereof, wherein, ring A, R1 and R2 are as defined herein, pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other therapeutically active agents), and methods for their preparation and use, alone and in combination with other therapeutic agents, as antagonists of A2a and/or A2b receptors, and in the treatment of a variety of diseases, conditions, or disorders that are mediated, at least in part, by the adenosine A2a receptor and/or the adenosine A2b receptor.
[EN] 7-, 8-, and 10-SUBSTITUTED AMINO TRIAZOLO QUINAZOLINE DERIVATIVES AS ADENOSINE RECEPTOR ANTAGONISTS, PHARMACEUTICAL COMPOSITIONS AND THEIR USE<br/>[FR] DÉRIVÉS D'AMINO TRIAZOLO QUINAZOLINE À SUBSTITUTION EN POSITIONS 7, 8 ET 10 UTILISÉS EN TANT QU'ANTAGONISTES DU RÉCEPTEUR DE L'ADÉNOSINE, COMPOSITIONS PHARMACEUTIQUES ET LEUR UTILISATION
申请人:MERCK SHARP & DOHME
公开号:WO2020112706A1
公开(公告)日:2020-06-04
In its many embodiments, the present invention provides certain 7-, 8-, and 10-substituted amino triazolo quinazoline derivatives of Formula (I): or a pharmaceutically acceptable salt thereof, wherein ring A, R1, R2, and R4 are as defined herein, pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other therapeutic agents), and methods for their preparation and use, alone and in combination with other therapeutic agents, as antagonists of A2a and/or A2b receptors, and their use in the treatment of a variety of diseases, conditions, or disorders that are mediated, at least in part, by the adenosine A2a receptor and/or the adenosine A2b receptor.
HETEROCYCLIC SUBSTITUTED TRIFLUOROMETHYL PYRIMIDINONES AND THEIR USE
申请人:BAYER PHARMA AKTIENGESELLSCHAFT
公开号:US20160237059A1
公开(公告)日:2016-08-18
The present application relates to novel heterocyclically substituted 6-(trifluoromethyl)pyrimidin-4(3H)-one derivatives, to processes for their preparation, to their use alone or in combinations for the treatment and/or prevention of diseases, and to their use for preparing medicaments for the treatment and/or prevention of diseases, in particular for treatment and/or prevention of cardiovascular, renal, inflammatory and fibrotic diseases.
Heterocyclic Substituted, Anellated Pyrazole Derivative and its uses
申请人:Schirok Hartmut
公开号:US20100004235A1
公开(公告)日:2010-01-07
The present application relates to novel heterocyclyl-substituted fused pyrazole derivatives, to processes for their preparation, to their use, alone or in combination, for the treatment and/or prevention of diseases and to their use for preparing medicaments for the treatment and/or prevention of diseases, in particular for the treatment and/or prevention of cardiovascular disorders.