Access to [4,3,1]-Bridged Carbocycles via Rhodium(III)-Catalyzed C–H Activation of 2-Arylindoles and Annulation with Quinone Monoacetals
作者:Guangfan Zheng、Xujing Duan、Lu Chen、Jiaqiong Sun、Shuailei Zhai、Xiaojiao Li、Jierui Jing、Xingwei Li
DOI:10.1021/acs.joc.0c00018
日期:2020.3.20
Reported herein is the Rh(III)-catalyzed annulation of N-unprotected 2-arylindoles with quinone monoacetals for the straightforward synthesis of [4,3,1]-bridged carbocycles with exclusive C(3) selectivity. Mechanistic studies, particularly deuterium-labeling experiments, suggest that the coupling likely proceeds via two-fold C-H activation with two-fold migratory insertion into the enone moieties.
Access to Quaternary Stereogenic Centers via Rhodium(III)-Catalyzed Annulations between 2-Phenylindoles and Ketenes
作者:Xifa Yang、Yunyun Li、Lingheng Kong、Xingwei Li
DOI:10.1021/acs.orglett.8b00497
日期:2018.4.6
Rh(III)-catalyzed C–H activation of arenes and mild oxidative [4 + 2] annulative coupling with ketenes have been realized. The uniquely high reactivity of the C(3) of 2-phenylindoles was successfully utilized to facilitate the reductive elimination process, leading to efficient synthesis of cyclic products with a quaternary carbon stereocenter.
The sequential reactions of tetrazoles with bromoalkynes for the synthesis of (Z)-N-(2-bromo-1-vinyl)-N-arylcyanamides and 2-arylindoles
作者:Jiajun Zhang、Ling-Guo Meng、Pinhua Li、Lei Wang
DOI:10.1039/c3ra40669e
日期:——
2-Arylindoles were prepared by a sequential reaction of Ag-catalyzed α-addition–Pd-catalyzed C–H bond functionalization of tetrazoles with bromoalkynes. A stereocontrolled Ag-catalyzed α-addition reaction of tetrazoles with bromoalkynes underwent smoothly to generate (Z)-N-(2-bromo-1-vinyl)-N-arylcyanamides, which were subsequently converted into 2-arylindoles through an intramolecular cyclization by Pd-catalyzed direct C–H bond functionalizations.
通过四唑与溴炔的 Ag 催化 α-加成-Pd 催化 C-H 键官能化的顺序反应制备了 2-芳基吲哚。在 Ag 催化下,四唑与溴炔发生了立体控制的 α 加成反应,顺利生成了 (Z)-N-(2-溴-1-乙烯基)-N-芳基氰酰胺,随后通过 Pd 催化的直接 C-H 键官能化反应将其分子内环化为 2-芳基吲哚。
Indole derivatives as CFTR modulators
申请人:Ruah Sara S. Hadida
公开号:US20090131492A1
公开(公告)日:2009-05-21
Compounds of the present invention and pharmaceutically acceptable compositions thereof, are useful as modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator (“CFTR”). The present invention also relates to methods of treating ABC transporter mediated diseases using compounds of the present invention.
Compounds of the present invention and pharmaceutically acceptable compositions thereof, are useful as modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator (“CFTR”). The present invention also relates to methods of treating ABC transporter mediated diseases using compounds of the present invention.