合成了三种在 C1 和/或 C3 处用氨基修饰的新型 19 - nor -1α,25-二羟基维生素 D 3衍生物,以研究氨基取代 A 环的一个或两个羟基对亲和力的影响用于维生素 D 受体 (VDR) 和维生素 D 结合蛋白 (hDBP),以及抗增殖活性。A 环前体由顺式制备,顺式-1,3,5-环己烷三醇应用洋葱假单胞菌脂肪酶催化的前手性 1,3-二醇的去对称化反应作为关键步骤。非对映异构体的结构解析通过 NMR 光谱明确指定。
合成了三种在 C1 和/或 C3 处用氨基修饰的新型 19 - nor -1α,25-二羟基维生素 D 3衍生物,以研究氨基取代 A 环的一个或两个羟基对亲和力的影响用于维生素 D 受体 (VDR) 和维生素 D 结合蛋白 (hDBP),以及抗增殖活性。A 环前体由顺式制备,顺式-1,3,5-环己烷三醇应用洋葱假单胞菌脂肪酶催化的前手性 1,3-二醇的去对称化反应作为关键步骤。非对映异构体的结构解析通过 NMR 光谱明确指定。
Cobalt-based molecular electrocatalysis of nitrile reduction: evolving sustainability beyond hydrogen
作者:Simon N. Child、Radoslav Raychev、Nathan Moss、Benjamin Howchen、Peter N. Horton、Christopher C. Prior、Vasily S. Oganesyan、John Fielden
DOI:10.1039/c9dt00773c
日期:——
Two complexes, designed as hydrogen evolution catalysts, are shown to be the first earth-abundant molecular electrocatalysts for reduction of acetonitrile to ethylamine.
Design and sterospecific synthesis of modular ligands based upon cis-1,3-trans-5-substituted cyclohexanes
作者:John Fielden、Joanna Sprott、Leroy Cronin
DOI:10.1039/b503606b
日期:——
use of efficient mono-silylation and mono-tosylation procedures, is well optimised, and due to isolation of the diazido alcohol precursor cis-3,5-diazido-trans-hydroxycyclohexane readily allows the synthesis of a sizeable family of related ligands via O-derivatisation. Such derivatisations allow systematic changes between various coordinating, hydrogen bonding and lipophilic groups, allowing potential
Stereospecific aliphatic hydroxylation by iron-hydrogen peroxide. Evidence for a stepwise process
作者:John T. Groves、Michael Van der Puy
DOI:10.1021/ja00433a039
日期:1976.8
[EN] BCAT2 INHIBITORS<br/>[FR] INHIBITEURS DE BCAT2
申请人:[en]AGIOS PHARMACEUTICALS, INC.
公开号:WO2023086539A2
公开(公告)日:2023-05-19
The disclosure is directed to compounds, and pharmaceutically acceptable salts thereof, that inhibit branched-chain amino acid aminotransferase 2 (BCAT2), pharmaceutical compositions comprising those compounds, and methods of using those compounds for treating branched chain amino acid (BCAA)-catabolism-related diseases.