Mechanism-Based Design of Quinoline Potassium Acyltrifluoroborates for Rapid Amide-Forming Ligations at Physiological pH
作者:Matthias Tanriver、Yi-Chung Dzeng、Sara Da Ros、Erwin Lam、Jeffrey W. Bode
DOI:10.1021/jacs.1c07354
日期:2021.10.27
Potassium acyltrifluoroborates (KATs) undergo chemoselective amide-formingligations with hydroxylamines. Under aqueous, acidic conditions these ligations can proceed rapidly, with rate constants of ∼20 M–1 s–1. The requirement for lower pH to obtain the fastest rates, however, limits their use with certain biomolecules and precludes in vivo applications. By mechanistic investigations into the KAT
酰基三氟硼酸钾 (KAT) 与羟胺发生化学选择性酰胺形成连接。在水性、酸性条件下,这些连接可以快速进行,速率常数约为 20 M –1 s –1。然而,为了获得最快的速率,需要较低的 pH 值,这限制了它们与某些生物分子的使用,并排除了体内应用。通过对 KAT 连接的机理研究,包括动力学研究、X 射线晶体学和 DFT 计算,我们已经确定了质子在加速连接中的关键作用。我们将这些知识应用于 8-喹啉酰基三氟硼酸盐的设计和合成,这是一类新的 KAT,可在 pH 7.4 下与羟胺连接,速率常数 >4 M –1 s –1. 我们将生理 pH 值的提高速率追踪到 8-喹啉-KAT 出乎意料的高碱度,即使在中性条件下也会导致它们的质子化。该质子有助于关键四面体中间体的形成,并激活羟胺上的离去基团,使其产生协同的 1,2-BF 3位移,从而生成酰胺产物。我们证明了在 pH 7.4 下的快速连接可以用微摩尔浓度的蛋白质底物进行。
Fused-aryl and heteroaryl derivatives as modulators of metabolism and the prophylaxis and treatment of disorders related thereto
申请人:Jones M. Robert
公开号:US20060142262A1
公开(公告)日:2006-06-29
The present invention relates to certain fused aryl and heteroaryl derivatives of Formula (I) that are modulators of metabolism.
Accordingly, compounds of the present invention are useful in the prophylaxis or treatment of metabolic disorders and complications thereof, such as, diabetes and obesity.
FUSED-ARYL AND HETEROARYL DERIVATIVES AS MODULATORS OF METABOLISM AND THE PROPHYLAXIS AND TREATMENT OF DISORDERS RELATED THERETO
申请人:Jones Robert M.
公开号:US20100093761A1
公开(公告)日:2010-04-15
The present invention relates to certain fused aryl and heteroaryl derivatives of Formula (I) that are modulators of metabolism.
Accordingly, compounds of the present invention are useful in the prophylaxis or treatment of metabolic disorders and complications thereof, such as, diabetes and obesity.
Fused-aryl and heteroaryl derivatives as modulators of metabolism and the prohylaxis and treatment of disorders related thereto
申请人:Arena Pharmaceuticals, Inc.
公开号:EP2292620A2
公开(公告)日:2011-03-09
The present invention relates to certain fused aryl and heteroaryl derivatives of Formula (I) that are modulators of metabolism.
Accordingly, compounds of the present invention are useful in the prophylaxis or treatment of metabolic disorders and complications thereof, such as, diabetes and obesity.
Peptide‐Directed Attachment of Hydroxylamines to Specific Lysines of IgG Antibodies for Bioconjugations with Acylboronates
作者:Matthias Tanriver、Marco Müller、Mikail D. Levasseur、Daniel Richards、Sohei Majima、Andrew DeMello、Yohei Yamauchi、Jeffrey W. Bode
DOI:10.1002/anie.202401080
日期:2024.4.22
A cyclic peptide directs the covalent attachment of a hydroxylamine to specific lysine residues of the fragment crystallizable region of antibodies, and is cleaved upon potassium acyltrifluoroborate (KAT) ligation under physiological conditions in a traceless fashion. This convenient approach to the direct conjugation of commercial IgG antibodies is suitable for the formation of antibody–drug, antibody–protein