Cross Coupling of Bromo Sydnones: Development of a Flexible Route toward Functionalized Pyrazoles
作者:Duncan L. Browne、John B. Taylor、Andrew Plant、Joseph P. A. Harrity
DOI:10.1021/jo802240e
日期:2009.1.2
The application of a Suzuki cross coupling approach to a range of C-4 substituted sydnones from a 4-bromosydnone is described. Moreover, the potential of this approach to prepare a diverse range of pyrazoles is demonstrated.
Evaluation of Sydnone-Based Analogues of Combretastatin A-4 Phosphate (CA4P) as Vascular Disrupting Agents for Use in Cancer Therapy
作者:Andrew W. Brown、Toby Holmes、Matthew Fisher、Gillian M. Tozer、Joseph P. A. Harrity、Chryso Kanthou
DOI:10.1002/cmdc.201800567
日期:2018.12.20
The combretastatins have attracted significant interest as small‐molecule therapies for cancer due to their ability to function as vasculardisruptingagents. We have successfully prepared a range of combretastatinanalogues that are based on a novel sydnone heterocycle core, and their potential as tubulin binders has been assessed in vitro and in vivo. The most potent candidate was found to disrupt
作者:Leihkauf, P.、Lohse, V.、Csongar, Ch.、Tomaschewski, G.
DOI:——
日期:——
Direct Arylation of Sydnones with Aryl Chlorides toward Highly Substituted Pyrazoles
作者:Andrew W. Brown、Joseph P. A. Harrity
DOI:10.1021/acs.joc.5b00143
日期:2015.2.20
The direct arylation of the C4 position of both N-alkyl- and N-arylsydnones with aryl/heteroaryl chlorides has been realized. The reaction is quite general and allows access to a wide range of 4-substituted sydnones. Yields of more challenging substrates can be improved through the use of aryl bromides.