Synthesis and evaluation of some new fluorinated hydroquinazoline derivatives as antifungal agents.
The key intermediate octahydroquinazoline (1) was obtained in one pot synthesis by a modification of the Biginelli reaction. Compound 1 was allowed to react with phenacyl bromide and bromomalononitrile to furnish thiazolo[2,3-b]quinazoline 3 and 12, respectively. Interaction of compound 12 with formamide, formic acid and phenyl isothiocyanate yielded the corresponding pyrimidino[4',5':4.5]thiazolo[2,3-b] quinazolines 13, 14 and 17, respectively. The structure of the synthesized compounds were elucidated by elemental analyses and spectroscopic analyses. Some of the prepared compounds were tested for their antifungal activity in comparison with tioconazole as a reference fungicide.
Ghorab
M M
MM
Department of Drug Radiation Research, National Centre for Radiation Research and Technology, Nasr City, Cairo, Egypt. ghorabmoustafa@hotmail.com
Abdel-Gawad
S M
SM
El-Gaby
M S
MS
D000935:Antifungal Agents / Q000737:chemistry / Q000494:pharmacology*; D001231:Aspergillus flavus / Q000187:drug effects; D001235:Aspergillus ochraceus / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D005459:Fluorides; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D010408:Penicillium chrysogenum / Q000187:drug effects; D011799:Quinazolines / Q000138:chemical synthesis / Q000494:pharmacology*; D013844:Thiazoles / Q000138:chemical synthesis / Q000494:pharmacology*
D000935:Antifungal Agents; D011799:Quinazolines; D013844:Thiazoles; D005459:Fluorides