Inhibitors of cysteine proteases and methods of use thereof
申请人:Pardes Biosciences, Inc.
公开号:US11124497B1
公开(公告)日:2021-09-21
The disclosure provides compounds with warheads and their use in treating medical diseases or disorders, such as viral infections. Pharmaceutical compositions and methods of making various compounds with warheads are provided. The compounds are contemplated to inhibit proteases, such as the 3C, CL- or 3CL-like protease. Exemplary compounds provided include Formula II-I, where R3, RB are provided herein:
Late-Stage Chemo- and Enantioselective Oxidation of Indoles to C3-Monosubstituted Oxindoles
作者:Song Li、Xigong Liu、Chen-Ho Tung、Lei Liu
DOI:10.1021/jacs.3c11742
日期:2023.12.13
Catalytic asymmetric preparation of chiral 3-monosubstituted oxindoles represents a significant challenge in synthetic chemistry due to the ease of racemization of the tertiary stereocenter through enolization. Here, we describe a general titanium-catalyzed chemo- and enantioselective indole oxidation to produce a diverse set of chiral 3-monosubstituted oxindoles with up to 96% yield, 99% ee, and with
手性 3-单取代羟吲哚的催化不对称制备在合成化学中提出了重大挑战,因为叔立构中心很容易通过烯醇化发生外消旋化。在这里,我们描述了一种通用的钛催化化学和对映选择性吲哚氧化,通过使用以下组合来生产多种手性 3-单取代羟吲哚,产率高达 96%,ee 99%,底物/催化剂比率为 10,000一种简单的钛(萨兰)催化剂与绿色且原子经济的末端氧化剂H 2 O 2的研究。这种温和的方法可以耐受广泛的官能团,使得一系列商业药物和天然产物的后期不对称多样化以及一系列广泛的酶拮抗剂的后期不对称构建成为可能,所有这些都是通过现有技术难以实现的方法。
INHIBITORS OF CYSTEINE PROTEASES AND METHODS OF USE THEREOF
申请人:Pardes Biosciences, Inc.
公开号:US20210355111A1
公开(公告)日:2021-11-18
The disclosure provides compounds with warheads and their use in treating medical diseases or disorders, such as viral infections. Pharmaceutical compositions and methods of making various compounds with warheads are provided. The compounds are contemplated to inhibit proteases, such as the 3C, CL- or 3CL-like protease.
Photochemical Deracemization of 3‐Substituted Oxindoles
作者:Johannes Großkopf、Alexandra A. Heidecker、Thorsten Bach
DOI:10.1002/anie.202305274
日期:2023.7.24
A benzophenone-based catalyst was used as the only source of chirality in the photochemical deracemization of 3-substituted oxindoles. The reaction likely proceeds by hydrogen atom transfer and delivers the desired products, and derivatives thereof, with high enantiomeric excess.