Results 71 to 80 of about 26,582 (202)

Synthesis and bioactivity of pyrrole-conjugated phosphopeptides

open access: yesBeilstein Journal of Organic Chemistry, 2022
Here we report the synthesis and effect on the cell viability of pyrrole-conjugated phosphopeptides. Encouraged by the selective inhibition of cancer cells by a naphthyl-capped phosphopeptide (Nap-ffpy, 1), we conjugated the heteroaromatic dipyrrole or ...
Qiuxin Zhang, Weiyi Tan, Bing Xu
doaj   +1 more source

Pyrrolate-Catalyzed Conjugate Addition of Pyrrole to Electron-Deficient Alkenes

open access: yesSynlett, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Richardson, Robert D.   +2 more
openaire   +3 more sources

A convenient eco-friendly system for the synthesis of 5-sulfenyl tetrazole [PDF]

open access: yes, 2014
The use of CeCl3·7H2O in polyethyleneglycol 400 (PEG-400), as an efficient and eco-friendly promoter system for the convenient synthesis of 5-sulfenyl tetrazoles derived from indoles and pyrroles, is reported.
Bassaco, Mariana M.   +3 more
core   +2 more sources

An efficient and facile access to highly functionalized pyrrole derivatives

open access: yesBeilstein Journal of Organic Chemistry, 2018
A straightforward and one-pot synthesis of pyrrolo[3,4-c]pyrrole-1,3-diones via Ag(I)-catalyzed 1,3-dipolar cycloaddition of azomethine ylides with N-alkyl maleimide, followed by readily complete oxidation with DDQ, has been successfully developed ...
Meng Gao   +5 more
doaj   +1 more source

Three-component reactions of aromatic amines, 1,3-dicarbonyl compounds, and α-bromoacetaldehyde acetal to access N-(hetero)aryl-4,5-unsubstituted pyrroles

open access: yesBeilstein Journal of Organic Chemistry, 2020
N-(Hetero)aryl-4,5-unsubstituted pyrroles were synthesized from (hetero)arylamines, 1,3-dicarbonyl compounds, and α-bromoacetaldehyde acetal by using aluminum(III) chloride as a Lewis acid catalyst through [1 + 2 + 2] annulation.
Wenbo Huang   +5 more
doaj   +1 more source

From Heteroaromatic acids and Imines to Azaspirocycles : Stereoselective Synthesis and 3D Shape Analysis [PDF]

open access: yes, 2016
Heteroaromatic carboxylic acids have been directly coupled with imines using T3P and NEt(i-Pr)2 to form azaspirocycles via intermediate N-acyliminium ions.
Bailey   +65 more
core   +2 more sources

Pyrrole and Fused Pyrrole Compounds with Bioactivity against Inflammatory Mediators

open access: yesMolecules, 2017
A new series of pyrrolopyridines and pyrrolopyridopyrimidines have been synthesized from aminocyanopyrroles. The synthesized compounds have been characterized by FTIR, 1H-NMR and mass spectroscopy.
Samar Said Fatahala   +4 more
doaj   +1 more source

Symmetry Breaking in Pyrrolo[3,2-b]pyrroles: Synthesis, Solvatofluorochromism and Two-photon Absorption [PDF]

open access: yes, 2019
Five centrosymmetric and one dipolar pyrrolo[3,2-b]pyrroles, possessing either two or one strongly electron-withdrawing nitro group have been synthesized in a straightforward manner from simple building blocks.
Ahn, Kyo Han   +9 more
core   +1 more source

Synthetic, enzyme kinetic, and protein crystallographic studies of C-[béta]-D-glucopyranosyl pyrroles and imidazoles reveal and explain low nanomolar inhibition of human liver glycogen phosphorylase [PDF]

open access: yes, 2016
LBK
Batta, Gyula   +11 more
core   +1 more source

Quality properties Of Vietnamese cocoa liquors [PDF]

open access: yes, 2013
Vietnam (VN) is an emerging country targeting cocoa as a potential industrial domain. It is however still unclear how the quality of VN cocoa liquors can be positioned in the world cocoa supply.
Dewettinck, Koen   +6 more
core  

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