Enantioselective Artificial Metalloenzymes by Creation of a Novel Active Site at the Protein Dimer Interface
作者:Jeffrey Bos、Fabrizia Fusetti、Arnold J. M. Driessen、Gerard Roelfes
DOI:10.1002/anie.201202070
日期:2012.7.23
A game of two halves: Artificialmetalloenzymes are generated by forming a novelactivesite on the dimerinterface of the transcription factor LmrR. Two copper centers are incorporated by binding to ligands in each half of the dimer. With this system up to 97 % ee was obtained in the benchmark CuII catalyzed Diels–Alder reaction (see scheme).
The Reaction of Enaminones with Grignard Reagents: Synthesis of α,β-Unsaturated Ketones
作者:C. Fontenas、H. Aït-Haddou、E. Bejan、G. G. A. Balavoine
DOI:10.1080/00397919808007005
日期:1998.5
Abstract Enaminones in toluene react with Grignardreagents in tetrahydrofuran at 0–25 °C, to give selectively and with high yields the corresponding α,β-unsaturated ketones.
摘要 甲苯中的烯胺酮与四氢呋喃中的格氏试剂在 0-25 °C 下反应,选择性地以高产率得到相应的 α,β-不饱和酮。
Enantioselective La<sup>III</sup>-pyBOX-Catalyzed Nitro-Michael Addition to (<i>E</i>)-2-Azachalcones
作者:Gonzalo Blay、Celia Incerti、M. Carmen Muñoz、José R. Pedro
DOI:10.1002/ejoc.201201579
日期:2013.3
[La(OTf)3] complex with a new pyBOX ligand bearing a bulky 1-naphthylmethyl substituent at the 4′-position of the oxazoline ring catalyzes the conjugate addition of nitroalkanes to a broad range of (E)-2-azachalcones, providing the expected nitro-Michael products with good yields and enantiomeric excesses up to 87 %. The optical purity of the products can be increased by a single crystallization. A plausible
Selectivity by the barrel-load: A reaction cavity with a tethered polycyclic pyrene moiety, which acts as a platform to provide aromatic interactions, is constructed within the rigid scaffold of the β-barrel nitrobindin protein. An asymmetricDiels–Alderreaction between azachalcone and cyclopentadiene proceeds within the reaction cavity of the pyrene-linked nitrobindin with high stereoselectivity
Benzimidazole derivatives as bromodomain inhibitors
申请人:Gilead Sciences, Inc.
公开号:US10017501B2
公开(公告)日:2018-07-10
This application relates to chemical compounds which may act as inhibitors of, or which may otherwise modulate the activity of, a bromodomain-containing protein, including bromodomain-containing protein 4 (BRD4), and to compositions and formulations containing such compounds, and methods of using and making such compounds. Compounds include compounds of Formula (I)
wherein R1a, R1b, R2a, R2b, R3, R4a, R4b, and R5 are described herein.