Synthesis, antioxidant, and antiviral properties of pyrimidinylsulfamoyl azolyl acetamides
作者:Kuppi Reddy Gari Divya、Donthamsetty V. Sowmya、Suram Durgamma、Vadlamudi Tharanath、Divi Venkataramana Sai Gopal、Malaka Venkateshwarulu Jyothi Kumar、Chippada Appa Rao、Adivireddy Padmaja、Venkatapuram Padmavathi
DOI:10.1007/s00044-017-1956-0
日期:2017.10
A new class of pyrimidinylsulfamoyl azolyl acetamides was prepared from 2-pyrimidinylsulfamoyl acetic acid and 2-aminoazoles. The methoxy substituted pyrimidinylsulfamoyl oxazolyl acetamide (8e) displayed moderate antioxidant activity. The methyl and methoxy substituted pyrimidinylsulfamoyl oxazolyl acetamides (8b, 8e) exhibited antiviral activity on BHK 21 cell lines with IC50 63.5, 44.5 µg/mL, respectively
the presence of dispersed sodium in THF under ultrasonication is reported. The corresponding heteroaryl sulfonamido esters are directly condensed with heteroaryl amines to get amido sulfonamido heteroaromatics in the presence of a mild base in THF under ultrasonication. Utilization of easy reaction conditions, shorter reaction times, and isolation of products in high yields under ultrasonication make
Synthesis of Benzazolyl Pyrimidines Under Ultrasonication and Their Antimicrobial Activity
作者:Narendra Babu Kayathi、Donthamsetty V. Sowmya、Padmaja Adivireddy、Padmavathi Venkatapuram
DOI:10.1002/jhet.3134
日期:2018.4
(1) The benzoxazolyl/benzothiazolyl/benzimidazolyl pyrimidines were prepared under ultrasonication in the presence of pyridine/dimethylaminopyridine and triethylamine. (2) Better yields were recorded in 4‐(N,N‐dimethylamino)pyridine and Et3N. (3) The presence of electron withdrawing chloro, bromo, and nitro substituents enhanced antimicrobial activity (13c, 13e, 14e: minimum inhibitory concentration = 6
structure-activity relationship study of substituted 2-aminopyrimidines, the influence of the C-5substitution on inhibition of prostaglandin E2 (PGE2) production was studied. Thirty compounds were prepared starting from the corresponding 2-amino-4,6-dichloropyrimidines using Suzuki cross-coupling. It was shown previously that 2-amino-4,6-dichloropyrimidines with smaller C-5 substituent (hydrogen and methyl)
作者:Rakesh Mondal、Suman Sinha、Siuli Das、Gargi Chakraborty、Nanda D. Paul
DOI:10.1002/adsc.201901172
日期:2020.2.6
Herein we report an iron‐catalyzed multicomponent dehydrogenative functionalization of alcohols to pyrimidines under atmospheric conditions. Using a well‐defined Fe(II)‐complex featuring redox noninnocent 2‐phenylazo‐(1,10‐phenanthroline) ligand, as a catalyst, a wide array of 2,4,6‐trisubstituted pyrimidines were prepared via dehydrogenative coupling of primary and secondary alcohols with amidines