A fast and selective decarboxylative difunctionalization and cyclization for easy access to gem-dihalo alcohol, ether, ester and bromo-1,4-dioxane
作者:Saikat Khamarui、Deblina Sarkar、Palash Pandit、Dilip K. Maiti
DOI:10.1039/c1cc16126a
日期:——
A general strategy for fast decarboxylative difunctionalization to gem-dihalohydrin, gem-dihaloether, gem-dibromoester and cyclized bromo-1,4-dioxane synthons with outstanding regio- and stereoselectivity is demonstrated.
Synthesis, cytotoxicity and molecular modelling studies of new phenylcinnamide derivatives as potent inhibitors of cholinesterases
作者:Aamer Saeed、Parvez Ali Mahesar、Sumera Zaib、Muhammad Siraj Khan、Abdul Matin、Mohammad Shahid、Jamshed Iqbal
DOI:10.1016/j.ejmech.2014.03.015
日期:2014.5
The present study reports the synthesis of cinnamide derivatives and their biological activity as inhibitors of both cholinesterases and anticancer agents. Controlled inhibition of brain acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) may slow neurodegeneration in Alzheimer's diseases (AD). The anticholinesterase activity of phenylcinnamide derivatives was determined against Electric Eel
A Photocatalytic Regioselective Direct Hydroaminoalkylation of Aryl-Substituted Alkenes with Amines
作者:Natalia A. Larionova、Jun Miyatake Ondozabal、Emily G. Smith、Xacobe C. Cambeiro
DOI:10.1021/acs.orglett.1c01715
日期:2021.7.16
hydroaminoalkylation of cinnamate esters has been developed. The reaction involves the regioselective addition of α-aminoalkyl radicals generated from aniline derivatives or aliphatic amines to the α-position of unsaturated esters. The scope of aromatic alkenes was extended to styrenes undergoing hydroaminoalkylation with anti-Markovnikov selectivity, which confirms the importance of the aromatic group
DNA–topoisomerase alpha and beta complexes. All of the conjugates studied showed approximately one order of magnitude strongerbinding to DNA compared to the reference DiMIQ, and approximately two orders of magnitude strongerbinding to the topoisomerase II–DNA complex compared to DiMIQ. Conjugate 2 was predicted to have the strongest binding to the enzyme–DNA complex, with a Ki value of 2.8 nM.