Optimization of a pyrazole hit from FBDD into a novel series of indazoles as ketohexokinase inhibitors
摘要:
A series of indazoles have been discovered as KHK inhibitors from a pyrazole hit identified through fragment-based drug discovery (FBDD). The optimization process guided by both X-ray crystallography and solution activity resulted in lead-like compounds with good pharmaceutical properties. (C) 2011 Elsevier Ltd. All rights reserved.
Rh(iii)-catalyzed [4 + 1] annulation of 1-arylindazolones with alkynyl cyclobutanols: access to indazolo[1,2-a]indazolones
摘要:
A convenient and efficient synthesis of structurally diverse indazolo[1,2-a]indazolones via a Rh(iii)-catalyzed [4 + 1] annulation of 1-arylindazolones with alkynyl cyclobutanols has been achieved by combining C–H and C–C bond cleavage.
Indazolones Directed Rh(III)‐Catalyzed C−H Amidation of Arenes
作者:Shao‐Yong Chen、Yi‐Chuan Zheng、Xu‐Ge Liu、Jia‐Lin Song、Bing Shu、Tao Zheng、Lin Xiao、Shang‐Shi Zhang、Hua Cao
DOI:10.1002/adsc.202200570
日期:2022.9.20
The Cp*Rh(III)-catalyzed indazolone-directed C−H bond amidation of arenes has been realized by employing sulfonyl azide agents and dioxazolones as nitrogen source. This protocol displays mild conditions, broad substrate scope and high functional group compatibility. What’ more, the late-stage modifications of structure complicated drugs, such as Gemfibrozil, Oxaprozin, Probenecid and Naproxen, has
Rh(III)-catalyzed C–H/N–H annulation and C–H allylation of phenylindazolones have been realized by employing 5-methylene-1,3-dioxan-2-one and 4-vinyl-1,3-dioxolan-2-one as scalable cross-coupling partners, delivering functionalized indazolone fused heterocycles and branched and linear allyl indazolones respectively in moderate to high yield. These divergent synthesis protocols showcase mild conditions