Synthesis and Structure–Activity Relationship Studies of Benzo[
<i>b</i>
][1,4]oxazin‐3(4
<i>H</i>
)‐one Analogues as Inhibitors of Mycobacterial Thymidylate Synthase X
作者:Jakub Modranka、Jiahong Li、Anastasia Parchina、Michiel Vanmeert、Shrinivas Dumbre、Mayla Salman、Hannu Myllykallio、Hubert F. Becker、Roeland Vanhoutte、Lia Margamuljana、Hoai Nguyen、Rania Abu El‐Asrar、Jef Rozenski、Piet Herdewijn、Steven De Jonghe、Eveline Lescrinier
DOI:10.1002/cmdc.201800739
日期:2019.3.22
report herein an optimization campaign of a novel series of inhibitors with a unique inhibition profile. The inhibitors display competitive inhibition toward the methylene tetrahydrofolate cofactor of ThyX, enabling us to generate a model of the compounds bound to their target, thus offering insight into their structure-activityrelationships.
Synthesis and vasorelaxant activity of new 1,4-benzoxazine derivatives potassium channel openers
作者:Giuseppe Caliendo、Elisa Perissutti、Vincenzo Santagada、Ferdinando Fiorino、Beatrice Severino、Roberta d'Emmanuele di Villa Bianca、Laura Lippolis、Aldo Pinto、Raffaella Sorrentino
DOI:10.1016/s0968-0896(02)00091-3
日期:2002.8
As part of a search for new potassiumchannelopeners, the synthesis and vasorelaxant activity of new 1,4-benzoxazine derivatives derived from transformation of the benzopyran skeleton of cromakalim were described. Several new 1,4-benzoxazine derivatives were provided with significant vasorelaxant activity with an overall pharmacological behavior similar to CRK (1f, 1i, 2d, 2e, 2f and 2i).
Synthesis by microwave irradiation of a substituted benzoxazine parallel library with preferential relaxant activity for guinea pig trachealis
作者:Giuseppe Caliendo、Elisa Perissutti、Vincenzo Santagada、Ferdinando Fiorino、Beatrice Severino、Donatella Cirillo、Roberta d’Emmanuele di Villa Bianca、Laura Lippolis、Aldo Pinto、Raffaella Sorrentino
DOI:10.1016/j.ejmech.2004.05.003
日期:2004.10
An efficient, facile, and practical parallel combinatorial synthesis of substituted-benzoxazines under microwave irradiation was described. The procedure involved the use of a microwave oven especially designed for organic synthesis suitable for parallel synthesis of solution libraries. A demonstration 19-membered library of substituted N,N-dimethyl- and N-methyl-benzoxazine amide derivatives, structurally related to the potassium channel opener cromakalim, was generated by both conventional and microwave procedures, achieving a reduction from 7 h to 30-36 min in library generation time for the microwave approach. All the synthesized compounds were tested using the in vitro models of rat aorta and guinea pig trachea rings pre-contracted with phenylephrine and carbachol, respectively. All N,N-dimethyl amide derivatives showed a relaxant activity higher on guinea pig trachea rings than on rat aorta rings. (C) 2004 Elsevier SAS. All rights reserved.