A new series of pyrazole 4–7 and pyrazolo [1, 5-a] pyrimidine 8–13 were synthesized by
using a simple, efficient procedure, and screened for their in-vitro antimicrobial and …

Background: Pyrazole and its derivatives are known to exhibit significant biological and
pharmacological activities such as anticancer, anti-inflammatory, antioxidant, antibacterial …

Abstract A series of [4-amino-3-(4-chlorophenyl)-1H-pyrazol-5-yl](3, 5-dimethyl-1H-pyrazol-1-
yl)-methanone and 6-amino-3-(4-chlorophenyl)-5-methyl-1, 6-dihydro-7H-pyrazolo [4, 3-d] …

A novel series of pyrazolo [1, 5-a] pyrimidine-3-carbonitriles substituted with 7-amino, 7-
substituted amino and 5-substituted amino groups was synthesized. Some of the newly …

A novel series of pyrido [2, 3‐d] pyrimidines 3a–d, 4a–d, 5a–d, 6a–d, and 7a–d; pyrido [3, 2‐
e][1, 3, 4] triazolo; and tetrazolo [1, 5‐c] pyrimidines 10a–d and 11a–d was synthesized …

The reaction of 4-hydrazino-8-(trifluoromethyl) quinoline (2) with
ethoxymethylenecyanoacetate afforded ethyl 5-amino-1-[8-(trifluoromethyl) quinolin-4-yl]-1H …

The reaction of 5, 6-diphenyl-3-hydrazino-1, 2, 4-triazine (1) with bis (methylthio) methylene]
malononitrile (2) afforded 5-amino-1-(5, 6-diphenyl-1, 2, 4-triazin-3-yl)-3-(methylthio)-1H …

Abstract Pyrazolo [3, 4-d] pyrimidines are one of the most important classes of fused
heterocyclic compounds which exhibit a broad range of biological and medicinal properties …

Synthesis and biological evaluation of novel pyrazoles and pyrazolo [3, 4‐d] pyrimidines are
reported. Fourteen compounds were selected by the NCI and tested for their preliminary in …

Background Some novel substituted pyrazolone, pyrazolo [3, 4-c] pyridazine, pyrazolo [3, 4-
d] pyrimidine, pyrazolo [3, 4-d] thiazolo [3, 2-a] pyrimidinone, thieno [3, 2-c] pyrazole and …