Fluorinated pyrazoles, benzenesulfonylurea and thiourea and their cyclic sulfonylthiourea derivatives were prepared as hypoglycemic agents. The chemistry involves the condensation of 4-hydrazino benzenesulfonamide hydrochloride with fluorochalcones to give pyrazoline derivatives which upon oxidation with bromine water afforded corresponding pyrazoles. Reaction of pyrazolines with isocyanates and isothiocyanates give the corresponding ureas and thioureas. Subsequent cyclization of these thiourea derivatives with ethyl bromoacetate and α-bromoacetophenone yielded the 4-oxothiazolidines and thiazolines, respectively. Preliminary biological screening of the prepared compounds revealed significant antidiabetic activity. Molecular and biological properties calculations revealed favorable drug-like profiles of six compounds. The structure–activity relationship (SAR) and in silico drug relevant properties calculations (HBD, HBA, tPSA, miLogP, molecular weight, % ABS, drug-likeness and drug score) endorse that these compounds are potential leads for future drug discovery study.

The synthesis of a series of 2,3-diaryl-7-methyl-4,5,6,7-tetrahydroindazole and 3,3a,4,5,6,7-hexahydroindazole derivatives substituted with various biologically-active function groups with anticipated chemotherapeutic activity is described. 4-(7-methyl-3-aryl-3,3a,4,5,6,7-hexahydro-indazol-2-yl)benzenesulfonamides 2a–c, which were employed as key intermediates in this study, were synthesized by cyclocondensation of 6-arylidene-2-methylcyclohexanones 1a–c with 4-hydrazinobenzenesulfonamide hydrochloride. A detailed discussion of the reactions utilized in the preparation of the intermediate and target compounds is reported, and the structures of the newly synthesized compounds were substantiated with IR, ¹H and ¹³C NMR spectral data and elementary microanalyses. Twenty of the newly synthesized compounds were selected by National Cancer Institute (NCI), Maryland, USA, to be evaluated for their antitumor activity and the results revealed that six compounds 3c, 4d,e, 5a,d and 8c exhibited broad spectrum of antitumor activity against most of the tested tumor cell lines. In addition, the in vitro antibacterial and antifungal activities of a number of the target compounds were also tested using the Agar-diffusion method. Some of these compounds have shown significant antibacterial and mild to moderate antifungal activities.

An efficient and novel method for the synthesis in moderate to good yield (72%–84%) of a series of 3-amino-1-substituted-9,10-dihydrophenanthrene-2,4-dicarbonitriles 1–5 via one-pot multi-component reactions of aldehydes, malononitrile, 1-tetralone and ammonium acetate has been delineated. Cyclocondensation attempts of aminocyanophenanthrene derivatives 1, 2, 4 and 5 with acetic anhydride in the presence of conc. H₂SO₄ failed and instead the diacetylamino derivatives 10–13 were obtained. All prepared compounds were structurally elucidated by various spectroscopic methods and X-ray crystallography. N,N-diacetylamino-derivatives of phenanthrene have shown good antimicrobial activity.

The synthesis, in vitro antimicrobial activities of some novel hydroxy pyridines supported with various pharmacophores is described. Twenty-six out of the tested 58 compounds exhibited variable inhibitory effects on the growth of the tested Gram positive and Gram negative bacteria. The tested compounds revealed better activity against the Gram positive rather than the Gram negative strains. The synthesized hydroxypyridones have shown very significant inhibitory effect against Staphylococcus aureus and Bacillus subtilis. Twelve compounds namely; 5d, 5f, 6a, 6b, 8b, 18b, 18c, 19c, 21d, 22b, 22d and 23d were able to produce appreciable growth inhibitory activity against Candida albicans when compared to Clotrimazole. Among these, 22d proved to be the most potent antifungal agent.