[EN] 3-PHENYL-7-HYDROXY-ISOCOUMARINS AS MACROPHAGE MIGRATION INHIBITORY FACTOR (MIF) INHIBITORS<br/>[FR] 3-PHÉNYL-7-HYDROXY-ISOCOUMARINES SERVANT D'INHIBITEURS DU FACTEUR D'INHIBITION DE LA MIGRATION DES MACROPHAGES
申请人:PROVOST FELLOWS & SCHOLARS COLLEGE OF THE HOLY UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN
公开号:WO2015144911A1
公开(公告)日:2015-10-01
This invention relates to 3-phenyl-7-hydroxy-isocoumarin compounds which are MIF inhibitors, compositions comprising said inhibitors and methods for treating or preventing diseases associated with MIF.
An Unusual Conversion of 2‐(Alkynonyl)Alkynylbenzenes to Isocoumarins by a Retro‐Favorskii‐like Degradation
作者:Jampani Santhi、Beeraiah Baire
DOI:10.1002/asia.201900745
日期:2019.9.16
We report the discovery of an anomalous reaction of 2-(alkynonyl)alkynylbenzenes under AgI catalysis for the selective formation of isocoumarins. This reaction is previously undocumented for 2-(alkynonyl)alkynylbenzenes in terms of the reaction mechanism and the product formed. Water (H2 O18 ) labeling studies suggested a possible mechanistic pathway in which the initial formation of a pyrylium ion
for the preparation of 3-substituted isocoumarins via palladium-catalyzed nucleophilic addition/oxidative annulation of bromoalkynes with benzoic acids has been developed. Remarkably, preliminary mechanistic studies indicated that the transformation might proceed via a stereo- and regioselective nucleophilic addition and C–H functionalization procedure.
3-Substituted Isocoumarins as Thymidine Phosphorylase Inhibitors
作者:Khalid Mohammed Khan、Sumbul Ahmed、Sajjad Hussain、Nida Ambreen/snm、>、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.2174/157018010790945805
日期:2010.5.1
3-Substituted isocoumarins 1-19 were synthesized and evaluated for their thymidine phosphorylase inhibitory activity. Eight (8) compounds exhibited a varying degree of inhibitory activity towards thymidine phosphorylase from E. coli with IC50 values between 61- 402 iM. The activities were compared with the standard 7-deazaxanthine (IC50 = 39.28 ± 0.76 iM).
Sulfoxonium Ylides as Carbene Precursors: Rhodium(III)‐Catalyzed Sequential C−H Functionalization, Selective Enol Oxygen‐Atom Nucleophilic Addition, and Hydrolysis
作者:Yuanqiong Huang、Xueli Lyu、Hongjian Song、Qingmin Wang
DOI:10.1002/adsc.201900861
日期:2019.11.19
Herein, we report a protocol for Rh(III)‐catalyzed annulation reactions between oxazolines and sulfoxonium ylides via a sequence involving C−H activation, selective enol oxygen‐atom nucleophilic addition, and hydrolysis. This practical, operationally simple protocol has a wide substrate range, excellent regioselectivity, and moderate to good yields.