Synthesis and antifungal activity of 4-thiazol-2-yl-5-aminopyrazoles and 4-aminopyrazolo [3,4-c] isothiazoles.
Starting from 4-thiocarbamoyl-5-aminopyrazoles (I), the AA could prepare two series of products: 4-thiazol-2-yl-5-aminopyrazoles (II) and 4-aminopyrazolo [3,4-c] isothiazoles (III). The screening for in vitro antifungal activity evidenced that compounds (III) are effective in controlling most examined fungi; in particular 1-phenyl-3-methyl-4-aminopyrazolo [3,4-c] isothiazole (III a) at the concentration of 20 p.p.m. completely inhibited the growth of Pythium ultimum and Corticium solani, responsible for the collar rot of the beet.
D000935:Antifungal Agents / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D005658:Fungi / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet; D013844:Thiazoles / Q000138:chemical synthesis* / Q000494:pharmacology
D000935:Antifungal Agents; D011720:Pyrazoles; D013844:Thiazoles