Process-Controlled Regiodivergent Copper-Catalyzed Azide–Alkyne Cycloadditions: Tailor-made Syntheses of 4- and 5-Bromotriazoles from Bromo(phosphoryl)ethyne
摘要:
We developed a regiodivergent syntheses of 4- and 5-bromo-substituted 1,2,3-triazoles in copper-catalyzed azide-alkyne cycloadditions (CuAACs) by taking advantage of bromo(phosphoryl)-ethyne 1 as a bromoethyne equivalent. A one-shot dephosphorylative CuAAC of 1 afforded 4-bromotriazoles, which was transformed into a histone deacetylase 8 (HDAC8)-selective inhibitor, NCC-149. However, the direct CuAAC catalyzed by CuI/Cu(OAc)(2) provided 5-bromo-4-phosphoryltriazoles. The consecutive nucleophilic substitution of the bromo group with thiols followed by MeOK-promoted dephosphorylation gave 5-thio-substituted triazoles.
On-Water Selectivity Switch in Microdroplets in the 1,2,3-Triazole Synthesis from Bromoethenesulfonyl Fluoride
作者:Dmitry B. Eremin、Valery V. Fokin
DOI:10.1021/jacs.1c08879
日期:2021.11.10
describe the on-water switch of chemoselectivity in the formation of triazoles controlled by the on-water environment in dual spray. These conditions facilitate elimination of H–SO2F from the triazoline intermediate, whereas the reaction in organicsolvents results in the exclusive HBr elimination. The influence of two-phase conditions was investigated to obtain the best reaction efficiency, and the
水通过加速或改变它们的选择性对许多有机反应产生深远的影响。在“水上”进行反应提供了一个影响化学反应性的有趣机会。雾化器羽流是产生微滴的有效方式——独特的复杂反应环境,开启了在散装乳液中不易获得的替代可能性。我们描述了在双喷雾中由水上环境控制的三唑形成过程中化学选择性的水上开关。这些条件有助于消除 H–SO 2F来自三唑啉中间体,而在有机溶剂中的反应导致唯一的 HBr 消除。研究了两相条件的影响以获得最佳反应效率,并通过 pH 值变化和 D 2 O 使用验证了水/有机界面相互作用的关键重要性。
[EN] 3-HETEROCYCLYL SUBSTITUTED 5-TRIFLUOROMETHYL OXADIAZOLES AS HISTONE DEACETYLASE 6 (HDAC6) INHIBITORS<br/>[FR] 5-TRIFLUOROMÉTHYL-OXADIAZOLES SUBSTITUÉS EN 3-HÉTÉROCYCLYLE COMME DES INHIBITEURS DE L'HISTONE DÉSACÉTYLASE 6 (HDAC6)
申请人:MERCK SHARP & DOHME
公开号:WO2017222950A1
公开(公告)日:2017-12-28
The present invention is directed to substituted 5-trifluoromethyl oxadiazole compounds of generic formula (I) (I) or a pharmaceutically acceptable salt thereof. In particular, the invention is directed to a class of aryl and heteroaryl substituted 5-trifluoromethyl oxadiazole compounds of formula I which may be useful as HDAC6 inhibitors for treating cellular proliferative diseases, including cancer, neurodegenerative diseases, such as schizophrenia and stroke, as well as other diseases.
TETRAHYDROQUINOLINE COMPOSITIONS AS BET BROMODOMAIN INHIBITORS
申请人:Forma Therapeutics, Inc.
公开号:US20150232445A1
公开(公告)日:2015-08-20
The present invention relates to inhibitors of bromo and extra terminal (BET) bromodomains that are useful for the treatment of cancer, inflammatory diseases, diabetes, and obesity, having Formula I:
wherein W, X, Y, Z, R
1
, R
2
, R
5
, and R
8
are as described herein.
Pd-Catalyzed Amination of Base-Sensitive Five-Membered Heteroaryl Halides with Aliphatic Amines
作者:Elaine C. Reichert、Kaibo Feng、Aaron C. Sather、Stephen L. Buchwald
DOI:10.1021/jacs.2c13520
日期:2023.2.15
functional-group-tolerant method for the Pd-catalyzedC–Ncross-coupling of five-membered heteroaryl halides with primary and secondary amines, an important but underexplored transformation. Coupling reactions of challenging, pharmaceutically relevant heteroarenes, such as 2-H-1,3-azoles, are reported in good-to-excellent yields. High-yielding coupling reactions of a wide set of five-membered heteroaryl
TETRAHYDROQUINOLINE DERIVATIVES FOR USE AS BET INHIBITORS
申请人:Forma Therapeutics, Inc.
公开号:EP3799872A1
公开(公告)日:2021-04-07
The present invention relates to inhibitors of bromo and extra terminal (BET) bromodomains that are useful for the treatment of cancer, inflammatory diseases, diabetes, and obesity, having Formula I:
wherein W, X, Y, Z, R1, R2, R5, and R8 are as described herein.