The modulatory role of sulfated and non-sulfated small molecule heparan sulfate-glycomimetics in endothelial dysfunction: absolute structural clarification, molecular docking and simulated dynamics, SAR analyses and ADMET studies
作者:Daniel M. Gill、Ana Paula R. Povinelli、Gabriel Zazeri、Sabrina A. Shamir、Ayman M. Mahmoud、Fiona L. Wilkinson、M. Yvonne Alexander、Marinonio L. Cornelio、Alan M. Jones
DOI:10.1039/d0md00366b
日期:——
The conceptual technology of small molecule glycomimetics, exemplified by compounds C1–4, has shown promising protective effects against lipid-induced endothelial dysfunction.
A versatile catalyst system for enantioselective synthesis of 2-substituted 1,4-benzodioxanes
作者:Eugene Chong、Bo Qu、Yongda Zhang、Zachary P. Cannone、Joyce C. Leung、Sergei Tcyrulnikov、Khoa D. Nguyen、Nizar Haddad、Soumik Biswas、Xiaowen Hou、Katarzyna Kaczanowska、Michał Chwalba、Andrzej Tracz、Stefan Czarnocki、Jinhua J. Song、Marisa C. Kozlowski、Chris H. Senanayake
DOI:10.1039/c8sc05612a
日期:——
We report the synthesis of enantiomerically enriched 1,4-benzodioxanes containing alkyl, aryl, heteroaryl, and/or carbonyl substituents at the 2-position. The starting 1,4-benzodioxines were readily synthesized via ring closing metathesis using an efficient nitro-Grela catalyst at ppm levels. Excellent enantioselectivities of up to 99:1 er were obtained by using the versatile catalyst system [Ir(c
SYNTHESIS OF 2-AMINO-SUBSTITUTED 4-OXO-4H-CHROMEN-8.YL-TRIFLUORO-METHANESULFONIC ACID ESTERS
申请人:Griffin Roger John
公开号:US20090326223A1
公开(公告)日:2009-12-31
A method of synthesising a compound of formula (I): wherein R
N1
and R
N2
are independently selected from hydrogen, an optionally substituted C
1-7
alkyl group, C
3-20
heterocyclyl group, or C
5-20
aryl group, or may together form, along with the nitrogen atom to which they are attached, an optionally substituted heterocyclic ring having from 4 to 8 ring atoms; from a compound of formula (III): comprising the steps of: (a) removing the allyl group from the compound of formula (III) with appropriate reaction conditions to yield a compound of formula (II): and (b) reacting the compound of formula (II) with a triflating agent to yield a compound of formula (I).
[EN] A method of synthesising a compound of formula (I): wherein RN1 and RN2 are independently selected from hydrogen, an optionally substituted C1-7 alkyl group, C3-20 heterocyclyl group, or C5-20 aryl group, or may together form, along with the nitrogen atom to which they are attached, an optionally substituted heterocyclic ring having from 4 to 8 ring atoms; from a compound of formula (III): comprising the steps of: (a) removing the allyl group from the compound of formula (III) with appropriate reaction conditions to yield a compound of formula (II):; and (b) reacting the compound of formula (II) with a triflating agent to yield a compound of formula (I). [FR] L'invention concerne un procédé de synthèse d'un composé de formule (I) : dans laquelle RN1 et RN2 sont choisis indépendamment parmi l'hydrogène, un groupement alkyle en C1-7 éventuellement substitué, un groupement hétérocyclyle en C3-20 et un groupement aryle en C5-20, ou peuvent former, avec l'atome d'azote auquel ils sont attachés, un cycle hétérocyclique éventuellement substitué ayant de 4 à 8 atomes cycliques; à partir d'un composé de formule (III) : comprenant les étapes consistant à : (a) éliminer le groupement allyle du composé de formule (III) dans des conditions de réaction appropriées pour obtenir un composé de formule (II) :; et (b) faire réagir le composé de formule (II) avec un agent triflatant pour obtenir un composé de formule (I).