[Synthesis and antimycotic activity of derivatives of 1, 3, 4-thiadiazole (3,2a) pyrimidone].

As a continuation of previous research designed to obtain derivatives of 1,3,4-thiadiazole of pharmacological interest, some derivatives of 1,3,4-thiadiazole[3,2-alpha]pyrimidin-5-one and isomeric 7-one were prepared. The fungistatic activity of the products was tested in vitro against the following: Candida albicans, Candida parapsilosis, Candida tropicalis, Cryptococcus neoformans e Trichophyton rubrum. No relevant antifungal activity was observed for any of the compounds examined.