Multicomponent Tether Catalysis Synthesis of Highly Functionalized 4-(Pyridin-2-ylmethyl)-2-aminopyrroles via Cascade Reaction Is Accompanied by Decarboxylation
作者:Kun Li、Li Chen、Yun-Xiang Fan、Yao Wei、Sheng-Jiao Yan
DOI:10.1021/acs.joc.9b01814
日期:2019.9.20
catalysis protocol for the synthesis of 4-(pyridin-2-ylmethyl)-2-aminopyrroles (PMAPs) was constructed by simply refluxing a mixture of ethyl 2-(pyridin-2-yl)acetates 1 and various types of arylglyoxal monohydrates 2 and different heterocyclic ketene aminals 3 in EtOH solvent. Based on this reaction, a series of highly functionalized PMAPs were obtained through a novel cascadereaction accompanied by a decarboxylation
Design, synthesis and biological evaluation of novel inosine 5′-monophosphate dehydrogenase (IMPDH) inhibitors
作者:Torsten Dunkern、Sunil Chavan、Digambar Bankar、Anuja Patil、Pritee Kulkarni、Prashant S. Kharkar、Arati Prabhu、Heike Goebel、Edith Rolser、Waltraud Burckhard-Boer、Premkumar Arumugam、Mahindra T. Makhija
DOI:10.3109/14756366.2013.793184
日期:2014.6.1
This study is based on our attempts to further explore the structure-activity relationship (SAR) of VX-148 (3) in an attempt to identify inosine 5'-mono-phosphate dehydrogenase (IMPDH) inhibitors superior to mycophenolic acid. A five-point pharmacophore developed using structurally diverse, known IMPDH inhibitors guided further design of novel analogs of 3. Several conventional as well as novel medicinal chemistry strategies were tried. The combined structure-and ligand-based approaches culminated in a few analogs with either retained or slightly higher potency. The compounds which retained the potency were also checked for their ability to inhibit human peripheral blood mononuclear cells proliferation. This study illuminates the stringent structural requirements and strict SAR for IMPDH II inhibition.
DROZD, V. N.;KOMAROVA, E. N.;DMITRIEV, L. B., ZH. ORGAN. XIMII, 25,(1989) N0, S. 2171-2176
作者:DROZD, V. N.、KOMAROVA, E. N.、DMITRIEV, L. B.
DOI:——
日期:——
NITROETHYLENOPHANES— NEW CLASS OF NOVEL CYCLOPHANES
Reaction of o-xylenyl dibromide with dipotassium salt of 2-nitro-1,1-ethanedithiol afforded nitroethylenophane 2. Similar strategy has been used for the synthesis of cyclophanes 7, 9 and 11.