[EN] MACROMOLECULE-SUPPORTED AMINOBENZAZEPINE COMPOUNDS<br/>[FR] COMPOSÉS D'AMINOBENZAZÉPINE À SUPPORT MACROMOLÉCULAIRE
申请人:BOLT BIOTHERAPEUTICS INC
公开号:WO2020252254A1
公开(公告)日:2020-12-17
The application provides macromolecule-supported compounds of Formula I or III comprising a macromolecular support linked by conjugation to one or more aminobenzazepine derivatives. The application also provides aminobenzazepine derivative intermediate compositions of Formula II comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the macromolecule-supported compounds through a linker or linking moiety. The application further provides compositions comprising the macromolecule-supported compounds, as well as methods of treating cancer with the macromolecule-supported compounds.
An efficient intermolecular trans-selective β-hydroamidation of ynamides to furnish a series of (Z)-ethene-1,2-diamide derivatives with excellent regio- and stereo-selectivities is described. The trans-β-addition reactions have been illustrated for a wide range of substrates and proceeded under basic reaction conditions using readily available materials in the absence of a transition-metal catalyst
[EN] AMIDE-LINKED, AMINOBENZAZEPINE IMMUNOCONJUGATES, AND USES THEREOF<br/>[FR] IMMUNOCONJUGUÉS D'AMINOBENZAZÉPINE LIÉS À DES AMIDES ET LEURS UTILISATIONS
申请人:BOLT BIOTHERAPEUTICS INC
公开号:WO2021067242A1
公开(公告)日:2021-04-08
The invention provides immunoconjugates of Formula I comprising an antibody linked by conjugation to one or more 8-amido-2-aminobenzazepine derivatives. The invention also provides 8-amido-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.
A Cascade Reaction of Michael Addition and Truce-Smiles Rearrangement to Synthesize Trisubstituted 4-Quinolone Derivatives
作者:Caixia Xie、Di Yang、Xinfeng Wang、Chen Ma
DOI:10.1021/acs.joc.0c01662
日期:2020.12.4
A novel transition-metal-free cascade reaction to synthesize 4-quinolone derivatives has been demonstrated. Michael addition and Truce-Smiles rearrangement are included in this protocol, providing a broad scope of 4-quinolones in moderate-to-excellent yields. This work serves as an example of the use of sulfonamides through Truce–Smiles rearrangement to build heterocyclic compounds under mild conditions
Effect of Substituent on Regioselectivity and Reaction Mechanism in Aminolysis of 2,4-Dinitrophenyl X-Substituted Benzenesulfonates
作者:Ik-Hwan Um、Jin-Young Hong、Jin-Ah Seok
DOI:10.1021/jo048227q
日期:2005.2.1
a kinetic study for the nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzensulfonates (X = 4-MeO, 1a, and X = 4-NO2, 1c) with a series of primary amines in 80 mol % H2O/20 mol % DMSO at 25.0 °C. The reactions proceed through S−O and C−O bondfission pathways competitively. The fraction of the S−O bondfission increases as the attaching amine becomes more basic and the substituent
我们对的2,4-二硝基苯基X取代的benzensulfonates亲核取代反应的动力学研究报告(X = 4-的MeO,1A,和X = 4-NO 2,1C),在80摩尔%一系列伯胺的在25.0°C下,H 2 O / 20 mol%DMSO。反应通过S-O和C-O键裂变途径竞争地进行。S-O键裂变的分数随连接胺变得更碱性和取代基X从4-MeO变为4-NO 2而增加,表明区域选择性是由取代基X的电子性质以及胺的碱度决定的。已建议S-O键裂变通过加成中间体进行,其中速率确定步骤(RDS)的变化为p K a °= 8.9±0.1。取代基X的电子性质影响k N S - O和k 1值,但不影响k 2 / k - 1比和p K a°值明显。通过供电子取代基和亲电子中心之间的共振相互作用,稳定基态(GS)的原因是1a的反应性比1c降低。C-O键裂变的二阶速率常数与取代基X的电子性质不相关。距离效应和反应机理的性质被认为是造成这种不相关的原因。