Anticancer activities of some newly synthesized pyrazole and pyrimidine derivatives.

A series of pyrazolopyridine and pyridopyrimidine derivatives 2-6 were newly synthesized using 3,5-bisarylmethylene-1-methylpiperidone as the starting material. The anticancer activities of the synthesized compounds were evaluated using 59 different human tumor cell lines, representing cancers of CNS, ovary, renal, breast, colon, lung, leukemia, and melanoma, prostate as well as kidney. Some of the tested compounds, especially those with a fluorine substituent at the para-position in the phenyl ring and those with a pyridopyrimidine-2-thione with a free -NH or -SH, exhibited greater in vitro anti-tumor activities at low concentrations (log 10 [GI₅₀] = -4.

Synthesis and antimicrobial activity of new 1-[(tetrazol-5-yl)methyl] indole derivatives, their 1,2,4-triazole thioglycosides and acyclic analogs.

New 1-[(tetrazol-5-yl)methyl]indole derivatives, their acyclic nucleoside analogs and the corresponding glycoside derivatives were synthesized. Furthermore, the [)(1,2,4-triazol-3-yl)methyl])-2H-tetrazole derivative as well as the corresponding thioglucoside were prepared. The synthesized compounds were tested for their antimicrobial activity against Aspergillus Niger, Penicillium sp, Candida albican, Bacillus subtilis, Streptococcus lacti, Escherichia coli, Pseudomonas sp.