Synthesis and evaluation of analogs of Efavirenz (SUSTIVATM) as HIV-1 reverse transcriptase inhibitors
摘要:
Efavirenz (SUSTIVA(TM)) is a potent non-nucleoside reverse transcriptase inhibitor. Due to the observation of breakthrough mutations of the reverse transcriptase enzyme during Efavirenz therapy, we sought to develop an optimized second generation series. To that end, SAR of the substituents on the aromatic ring was undertaken and the results are summarized here. The 5,6-difluoro (4f) and the 6-methoxy (4m) substituted benzoxazinones were determined to be equipotent, and as a result such substitution patterns will be incorporated in second generation scaffolds. (C) 1999 DuPont Pharmaceuticals. Published by Elsevier Science Ltd. All rights reserved.
General rhodium-catalyzed oxidative cross-coupling reactions between anilines: synthesis of unsymmetrical 2,2′-diaminobiaryls
作者:Yang Shi、Jiahui Liu、Yudong Yang、Jingsong You
DOI:10.1039/c9cc01733j
日期:——
cross-coupling reactions. Furthermore, this Cp*-free catalytic reaction tolerates a range of functional groups and requires only a low molar ratio of coupling partners. These features expedite the synthesis of unsymmetrical2,2′-diaminobiaryls.
Highly Regio- and Chemoselective Oxidative C–H/C–H Cross-Couplings of Anilines and Phenols Enabled by a Co-Oxidant-Free Rh(I)/Zn(NTf<sub>2</sub>)<sub>2</sub>/Air Catalytic System
作者:Luoqiang Zhang、Yanbing Wang、Yang Shi、Yimin Wu、Jingbo Lan、Weixin Ma、Jingsong You
DOI:10.1021/acscatal.9b00925
日期:2019.6.7
An urgent yet challenging task is to overcome the limitations in substrate scope and regio- and chemoselectivity in the oxidative couplings between two arenes for the construction of unsymmetrical 2,2′-difunctional biaryls with diverse application requirements. In this work, a co-oxidant-free Rh(I)/Zn(NTf2)2/air catalytic system has been developed for dual chelation-assisted oxidative C–H/C–H cross-couplings
Ruthenium‐Catalyzed Vinylene Carbonate Annulation by C−H/N−H Functionalizations: Step‐Economical Access to Indoles
作者:Yao Yu、Yang Wang、Bo Li、Yuqiang Tan、Huan Zhao、Zheyu Li、Chunran Zhang、Wenbo Ma
DOI:10.1002/adsc.202101466
日期:2022.2.15
A convenient and effective method of ruthenium-catalyzed C−H/N−H annulations using vinylene carbonate as oxidizing acetylene surrogate has been disclosed. This method is scalable and compatible with a wide range of functional groups, providing a step-economical access to indolesynthesis Preliminary mechanistic studies provided support for a reversible, acetate-assisted C−H ruthenation, along with
Use of the Wilkinson Catalyst for the<i>ortho</i>-CH Heteroarylation of Aromatic Amines: Facile Access to Highly Extended π-Conjugated Heteroacenes for Organic Semiconductors
作者:Yumin Huang、Di Wu、Jingsheng Huang、Qiang Guo、Juan Li、Jingsong You
DOI:10.1002/anie.201406445
日期:2014.11.3
An unprecedented catalytic system composed of the Wilkinson catalyst [Rh(PPh3)3Cl] and CF3COOH enabled the highly regioselective cross‐coupling of aromatic amines with a variety of heteroarenes through dual CH bond cleavage. This protocol provided a facile and rapid route from readily available substrates to (2‐aminophenyl)heteroaryl compounds, which may be conveniently transformed into highly extended
The present invention relates to relates to macrocyclic small molecule inhibitors of the Sonic Hedgehog signaling pathway, syntheses thereof, and intermediates thereto. Such small molecule modulators of the Sonic Hedgehog signaling pathway are useful in the treatment of proliferative diseases (e.g., basal cell carcinoma, Gorlin syndrome, medulloblastoma, or pancreatic cancer), pulmonary diseases (e.g., interstitial pnuemonitis or interstitial pulmonary fibrosis), and developmental disorders (e.g., phocomelia or cyclopia). Novel non-natural macrocycles are provided that inhibit Sonic Hedgehog induced-protein transcription.