The selective oxidation of C2-alkyl-substituted indoles to 3-oxindole and the selective C–H oxygenation or amination of C2,C3-dialkyl-substituted indoles at C2 are reported under mild conditions. The position of the alkyl substitution on the indole directs the reaction to different pathways under similar conditions.
The present invention relates to indoles and azaindoles of formula (1): wherein X
1
, X
2
, X
3
, X
4
, A
1
, Ar
1
, Ar, n, p and q are as defined herein and pharmaceutically acceptable salts thereof, useful in the prevention and treatment of hepatitis C virus infections.
Prodrugs of Peptide Epoxy Ketone Protease Inhibitors
申请人:Onyx Therapeutics, Inc.
公开号:US20140105921A1
公开(公告)日:2014-04-17
This disclosure features compounds that are useful as pro-drugs of epoxy ketone protease inhibitors.
本公开涉及一些化合物,这些化合物可用作环氧酮蛋白酶抑制剂的前药。
PRODRUGS OF PEPTIDE EPOXY KETONE PROTEASE INHIBITORS
申请人:Onyx Therapeutics, Inc.
公开号:US20160263234A1
公开(公告)日:2016-09-15
This disclosure features compounds that are useful as pro-drugs of epoxy ketone protease inhibitors.
本公开涉及一类作为环氧酮蛋白酶抑制剂的前药有用的化合物。
Boron-Assisted Cobalt-Catalyzed C–H Methylation Using CO<sub>2</sub> and H<sub>2</sub>
作者:Qin Shi、Haiyan Hu、Minxing Du、Yajun Sun、Yudong Li、Yuehui Li
DOI:10.1021/acs.orglett.3c02406
日期:2023.10.6
and pyrroles in the presence of cobalt/B(C6F5)3 cocatalysts. The Lewis acidic additive B(C6F5)3 is essential to achieving good reactivity for a broad scope of substituted indoles and pyrroles (20 examples, up to 92% yields). The C–H methylation is accomplished via the CO2 reduction/C–C bond formation/reduction sequence. Water is the only byproduct. This system based on the use of non-noble metal catalysts
杂芳烃(例如吲哚、吡咯等)的C-H甲基化经常应用于药物/生物相关化合物的合成。我们在此报告了使用CO 2 /H 2作为甲基化试剂,在钴/B(C 6 F 5 ) 3助催化剂存在下选择性地进行吲哚和吡咯的C-H甲基化。路易斯酸性添加剂 B(C 6 F 5 ) 3对于实现广泛的取代吲哚和吡咯的良好反应性至关重要(20 个实例,产率高达 92%)。 C–H 甲基化是通过 CO 2还原/C–C 键形成/还原序列完成的。水是唯一的副产品。该系统基于使用非贵金属催化剂,是 C-H 甲基化的环境友好型替代方案。