Synthesis of novel thiopyrimidines: an investigation of anti-tubercular and antimicrobial activity
摘要:
A variety of novel sulfur-containing tricyclic pyrimidine derivatives have been synthesized via the reaction of 2-amino-4-oxo-4H-chromene-3-carbonitriles 3(a-f) with different reagents and characterized by IR, H-1 NMR, C-13 NMR, mass spectrometry and elemental analysis. The anti-tubercular and antimicrobial activities of the synthesized compounds were investigated.[GRAPHICS].
Reactions of substituted aspirins with amino acids
作者:Elisa S. Orth、Michelle Medeiros、Bruno S. Souza、Natália B. Caon、Anthony J. Kirby、Faruk Nome
DOI:10.1002/poc.2971
日期:2012.11
Acyl transfers are key reactions in biology and in the laboratory. In biological systems they are involved in energy transport, in the assembly of complex molecules and in the mechanisms of efficient action of many hydrolytic enzymes. We report a mechanistic and calculational study of the selective N‐acylation reactions of aminoacids by substitutedaspirins, under mild conditions, in water at 25 °C
Synthesis of Benz[<i>d</i>]oxazolones Involving Concomitant Acetyl Migration from Oxygen to Nitrogen
作者:Sibdas Ray、Sukla Ghosh
DOI:10.1080/00397910903245158
日期:2010.7.27
Heating of o-acetoxybenzoyl azides 6–10 in toluene leads to the Curtius reaction, which, when followed by closure of oxazolone ring with concomitant migration of acetyl group fromoxygen to nitrogen, produces 3-acetoxybenz[d]oxazol-2(3H)-ones 11–15, which undergo hydrolysis with hot dilute hydrochloric acid to furnish benz[d]oxazol-2(3H)-ones 17–21. Thermal reaction of 2-hydroxy-5-nitrobenzoyl azide
N-ACYL ANTHRANILIC ACID DERIVATIVE OR SALT THEREOF
申请人:Yokotani Junichi
公开号:US20110275797A1
公开(公告)日:2011-11-10
An N-acyl anthranilic acid derivative represented by general formula (1) or a salt thereof is useful for prevention or treatment of diseases associated with excessive production of collagen. (In the formula, R
1
represents a carboxyl group or the like; R
2
represents a hydrogen atom or the like; R
3
represents an optionally substituted aryl group or the like; X
1
represents a carbonyl group; X
2
represents a bonding hand; X
3
represents a bonding hand; X
4
represents a bonding hand or the like; and A represents an optionally substituted phenyl group or the like.)
[EN] BIFUNCTIONAL COMPOUNDS AND USE FOR REDUCING URIC ACID LEVELS<br/>[FR] COMPOSÉS BIFONCTIONNELS ET LEUR UTILISATION POUR RÉDUIRE LES TAUX D'ACIDE URIQUE
申请人:WARRELL RAYMOND P
公开号:WO2015123003A1
公开(公告)日:2015-08-20
Bifunctional compounds that increase uric acid excretion and reduce uric acid production. Methods of using these compounds for reducing uric acid levels in blood or serum, for treating disorders of uric acid metabolism, and for maintaining normal uric acid levels in blood or serum are provided. Pharmaceutical compositions comprising the bifunctional compounds are also provided.
Micellar catalysis of organic reactions. Part 37. A comparison of the catalysis of ester and amide hydrolysis by copper-containing micelles
作者:Trevor J. Broxton、Abdulla Nasser
DOI:10.1139/v97-023
日期:1997.2.1
The hydrolysis of a number of nitroactivated esters and amides has been studied in the presence of copper-containing metallomicelles at neutral pH. The relative rates of hydrolysis in the pure meta...