Disclosed are substituted5-(3,5-dimethylisoxazol-4-yl)indoline-2-one compounds, pharmaceutical compositions comprising at least one such4substituted5-(3,5-dimethylisoxazol- 4-yl)indoline-2-one compound processes for the preparation thereof,and the use thereof for inhibiting BET family of bromodomains and for treating disorders mediated thereby,such as certain cancers.
Mechanistic Investigation of Oxidative Mannich Reaction with <i>tert</i>-Butyl Hydroperoxide. The Role of Transition Metal Salt
作者:Maxim O. Ratnikov、Michael P. Doyle
DOI:10.1021/ja3113559
日期:2013.1.30
heterolytic cleavage of the carbon-hydrogenbond at the α-position to nitrogen. A second SET completes the conversion of N,N-dimethylaniline to an iminium ion that is subsequently trapped by the nucleophilic solvent or the oxidant prior to formation of the Mannich adduct. The general role of Rh(2)(cap)(4), RuCl(2)(PPh(3))(3), CuBr, FeCl(3), and Co(OAc)(2) in N,N-dialkylaniline oxidations by T-HYDRO is to initiate
提出了过渡金属催化 N,N-二烷基苯胺与叔丁基过氧化氢 (TBHP) 作为氧化剂的氧化曼尼希反应的一般机制。该机制包括从 4-甲氧基到 4-氰基-N,N-二甲基苯胺均匀的限速单电子转移 (SET)。叔丁基过氧自由基是决定速率的 SET 步骤中的主要氧化剂,随后是竞争性向后 SET 和 α 位碳氢键的不可逆异裂裂解为氮。第二个 SET 完成 N,N-二甲基苯胺向亚胺离子的转化,亚胺离子随后在形成曼尼希加合物之前被亲核溶剂或氧化剂捕获。Rh(2)(cap)(4)、RuCl(2)(PPh(3))(3)、CuBr、FeCl(3) 和 Co(OAc)(2) 在 N 中的一般作用,T-HYDRO 氧化 N-二烷基苯胺是为了启动 TBHP 向叔丁基过氧自由基的转化。第二种途径涉及 O(2) 作为氧化剂,存在于铜盐、铁盐和钴盐中。讨论了线性自由能关系 (LFER) 分析、动力学和产物同位素效应(KIE 和
The iron(II)/reductant (DH2)-induced activation of dioxygen for the demethylation of N-methylanilines: Reaction mimic for the cytochrome P-450/reductase system
作者:John P. Hage、Joseph R. Schnelten、Donald T. Sawyer
DOI:10.1016/0968-0896(96)00071-5
日期:1996.6
Several iron(II) complexes [Fe(II)L(x); Fe-II(DPAH)(2) (DPAH(2) = 2,6-dicarboxyl pyridine), Fe-II(PA)(2) (PAH = picolinic acid) and Fe-II(bpy)(2)(2+) (bpy = 2,2'-bipyridine)] in combination with a reductant [DH2; PhNHNHPh (mimic of dihydroflavin)] catalytic ally activate O-2 (1 atm) for the demethylation of N-methylanilines [PhN(CH3)(2), PhNH(CH3)]. This chemistry, which appears to involve a Fenton-like intermediate [L(x)Fe(IV)OOH(DH) (1c)], mimics that of the cytochrome P-450 monooxygenase/reductase proteins. Copyright (C) 1996 Elsevier Science Ltd