Preparation of Unsymmetrical Ketones from Tosylhydrazones and Aromatic Aldehydes via Formyl C–H Bond Insertion
作者:Daniel M. Allwood、David C. Blakemore、Steven V. Ley
DOI:10.1021/ol5011714
日期:2014.6.6
Preparation of ketones by insertion of diazo compounds into the formyl C–H bond of an aldehyde is an attractive procedure, but use of structurally diverse diazo compounds is hampered by preparation and safety issues. A convenient procedure for the synthesis of unsymmetrical ketonesfrom bench-stable tosylhydrazones and aryl aldehydes is reported. The procedure can be performed in one pot from the parent
Practical and Modular Construction of C(sp<sup>3</sup>)-Rich Alkyl Boron Compounds
作者:Yangyang Yang、Jet Tsien、Ayala Ben David、Jonathan M. E. Hughes、Rohan R. Merchant、Tian Qin
DOI:10.1021/jacs.0c11964
日期:2021.1.13
Alkyl boronic acids and esters play an important role in the synthesis of C(sp3)-rich medicines, agrochemicals, and material chemistry. This work describes a new type of transition-metal-free mediated transformation to enable the construction of C(sp3)-rich and sterically hindered alkyl boron reagents in a practical and modular manner. The broad generality and functional group tolerance of this method
Regioselective Preparation of Saturated Spirocyclic and Ring-Expanded Fused Pyrazoles
作者:Rohan R. Merchant、Daniel M. Allwood、David C. Blakemore、Steven V. Ley
DOI:10.1021/jo501624t
日期:2014.9.19
tosylhydrazones, which are easily prepared from their parent ketones. Sigmatropic rearrangement of spirocyclic pyrazoles to fused analogues occurs with concomitant one-carbon expansion of the saturated ring, allowing rapidaccess to a range of pharmaceutically and agrochemically relevant polycyclic structures featuring a broad scope of saturated ring sizes.
[EN] COMPOUNDS USEFUL IN THE TREATMENT OR PREVENTION OF A PRMT5-MEDIATED DISORDER<br/>[FR] COMPOSÉS UTILES POUR TRAITER OU PRÉVENIR UN TROUBLE INDUIT PAR PRMT5
申请人:ARGONAUT THERAPEUTICS LTD
公开号:WO2018167269A1
公开(公告)日:2018-09-20
The present disclosure relates to compounds suitable for the inhibition of protein arginine methyl-transferase (PRMT), in particular PRMT5. These compounds may be for use as therapeutic agents, in particular, agents for use in the treatment and/or prevention of proliferative diseases, such as cancer.
Synthesis of spirocyclic dihydropyrazoles from tosylhydrazones and electron-deficient alkenes
作者:Timothy L. Wootton、Daniel M. Allwood
DOI:10.1039/d2ob00093h
日期:——
three–dimensionality. Herein, we demonstrate a procedurally simple method for the preparation of a range of spirocyclic dihydropyrazoles. The protocol utilises bench stable cyclic tosylhydrazones, which are trivial to prepare from the parent cyclic ketone without need for purification, and commercially available electron deficient alkenes. The synthetic utility of the core scaffold is also demonstrated