作为表观遗传阅读器,溴结构域和末端外结构域 (BET) 家族蛋白与组蛋白中的乙酰化赖氨酸残基结合并募集蛋白质复合物以促进转录起始和延伸。通过小分子抑制剂抑制 BET 溴结构域已成为一种有前途的癌症治疗策略。在这里,我们描述了我们为发现一系列新的 1-(5-(1 H -benzo[ d ]imidazole-2-yl)-2,4-dimethyl-1 H -pyrrol-3-yl)ethan 所做的努力-1-one 衍生物作为 BET 抑制剂。密集的结构修饰导致化合物35f被鉴定为对 BET 家族蛋白具有选择性的最活跃的 BET BRD4 抑制剂。进一步的生物学研究表明,化合物35f通过降低c-Myc等细胞周期和细胞凋亡相关蛋白的表达,使细胞周期停滞在G 0 /G 1期,诱导细胞凋亡。更重要的是,化合物35f在 MV4-11 小鼠异种移植模型中显示出良好的药代动力学特性和抗肿瘤功效,具有可接受的耐受性。这些结果表明,BET
[EN] COMPOUNDS, METHODS AND FORMULATIONS FOR THE ORAL DELIVERY OF A GLUCAGON LIKE PEPTIDE (GLP)-1 COMPOUND OR AN MELANOCORTIN 4 RECEPTOR (MC4) AGONIST PEPTIDE [FR] COMPOSES, PROCEDES ET PREPARATIONS DESTINES A L'APPORT ORAL D'UN COMPOSE PEPTIDIQUE DE TYPE GLUCAGON (GLP-1) OU D'UN PEPTIDE AGONISTE DU RECEPTEUR 4 DE MELANOCORTINE (MC4)
A novel divergent domino annulation reaction of prop-2-ynylsulfonium salts with sulfonyl-protected β-amino ketones has been developed, affording various epoxide-fused 2-methylenepyrrolidines and S-containing pyrroles in moderate to excellent yields. Prop-2-ynylsulfonium salts act as C2 synthons in the reactions providing a promising epoxide-fused skeleton in a single operation with readily accessible
The present invention provides a compound represented by the formula (I):
or a pharmacologically acceptable salt thereof, wherein Ar
1
represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar
2
represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X
1
represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by Aβ.
An approach to the synthesis of 4-aryl and 5-aryl substituted thiazole-2(3H)-thiones employing flow processing
作者:Monaem Balti、Shelli A. Miller、Mohamed Lotfi Efrit、Nicholas E. Leadbeater
DOI:10.1039/c6ra15488c
日期:——
A method for the preparation of 4-aryl and 5-aryl substituted thiazole-2(3H)-thiones is described. Flow processing is employed as a tool, and supported acids and bases used to facilitate both the synthetic strategy and product isolation. The methodology is applicable to a range of substrates.
Novel substituted pyrazolo[4,3-e]diazepines, pharmaceutical compositions containing them, use as medicinal products and processes for preparing them
申请人:——
公开号:US20030171364A1
公开(公告)日:2003-09-11
The invention relates to novel substituted pyrazolo[4,3-e]-diazepines of general formula (I), to pharmaceutical compositions containing them, to their use as medicinal products and to processes for preparing them.
Synthesis of 2‐Amino Substituted Oxazoles from α‐Amino Ketones and Isothiocyanates
<i>via</i>
Sequential Addition and I
<sub>2</sub>
‐Mediated Desulfurative Cyclization
Oxazol‐2‐amines were synthesized by annulation of α‐amino ketones and isothiocyanates. This sequential synthetic process involves addition of α‐amino ketones to isothiocyanates and I2‐promoted desulfurative cyclization omitting isolation of the less stable thiourea intermediates. It is transition metal‐free and operationally simple, providing access to a variety of 2‐amino substituted oxazole derivatives