The author of 《Synthesis and biological activity of substituted 4-methyl-7- [(5-phenyl-1, 3, 4-oxadiazolidin-2-yl) methoxy]-2H-chromen-2-ones》 were Anushree, A. M.; Bandhavya, H. D.; Shetty, S. Ramachandra; Namratha, T. V.; Chaluvaraju, K. C.. And the article was published in International Journal of Research in Pharmacy and Chemistry in 2019. SDS of cas: 586-76-5 The author mentioned the following in the article:
In the current study, a series of five novel substituted 4-methyl-7-[(5-aryl-1,3,4-oxadiazole-2-yl)methoxy]-2H-chromen-2-one I [R = H, Cl, Br, NH2, NO2] was synthesized by a synthetic protocol in 4 steps. The intermediate involved were acetate derivative of coumarin synthesized from 7-hydroxy 4-Me coumarin in the presence of K2CO3, acetohydrazide by reacting acetate derivative of coumarin with hydrazine hydrate. The final derivatives I were obtained from acetohydrazide in the presence of POCl3 by reacting it with substituted benzoic acids. All the reactions were carried out by conventional methods. All the synthesized compounds I were evaluated for their anticoagulant and anti-inflammatory activity by tail bleeding model and HRBC method resp. The results of the study revealed that compound I [R = NO2] having strong electron withdrawing group showed anticoagulant activity and compounds I [R = Br, Cl] showed anti-inflammatory activity comparable to that of standard warfarin and diclofenac resp. While the compound I [R = H], showed moderate activities. However, the compound I [R = NH2] having electron donating groups had neg. impact on the potency and showed less anticoagulant and anti-inflammatory activity as compared to other derivatives In addition to this study using 4-Bromobenzoic acid, there are many other studies that have used 4-Bromobenzoic acid(cas: 586-76-5SDS of cas: 586-76-5) was used in this study.
4-Bromobenzoic acid(cas: 586-76-5) has been used to study the metabolic fate of 2-,3-and 4-bromo benzoic acids in rat hepatocytes incubation using high temperature liquid chromatography. It was used in bromine-specific detection of the metabolites of 2-,3-and 4-bromobenzoic acid in the urine and bile of rats by inductively coupled plasma mass spectrometry.SDS of cas: 586-76-5
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary