5-fluorocytosine (5-FC), also known as 5-fluorocytosine, 5-fluorocytidine, anjezhi, and anlapen, is a white or quasi white crystalline powder. The inhibitory effect of 5-fluorocytosine on fungi is due to its entering into the cells of sensitive fungi, and under the action of cytosine deaminase, 5-fluorouracil, an anti metabolite, is formed. The latter is converted to 5-fluorouracil-2-deoxyriboside, which inhibits thymidine synthase, blocks the conversion of 5-fluorouracil-2-deoxyriboside to thymidine, and affects DNA synthesis. It has a good inhibitory effect on Candida, Cryptococcus and hyphomycetes, and also has an effect on some Aspergillus, as well as mycospores and bottle fungi which cause skin fungal diseases.
Manufacturing
