Synthesis of 5-substituted 2-(2,4-dihydroxyphenyl)-1,3,4-thiadiazoles
作者:J. Matysiak
DOI:10.1002/jhet.5570430108
日期:2006.1
One-stage synthesis of 5-substituted (alkyl, aryl, heteroaryl, arylalkyl, heteroalkyl, alkoxy-, aryloxy)-2-(2,4-dihydroxyphenyl)-1,3,4-thiadiazoles is described. The compounds were prepared by the reaction of sulfinyl-bis(2,4-dihydroxythiobenzoyl) (STB) with hydrazides or carbazates. The structure of new compounds was assigned by ir, nmr and ms data.
Synthesis and mycological activity of the compounds obtained in the reaction of N3-substituted amidrazones with sulphinyl-bis-2,4-dihydroxybenzenethioyl
作者:B Modzelewska-Banachiewicz
DOI:10.1016/s0223-5234(00)01176-4
日期:2001.1
2-Phenyl-5-(2,4-dihydroxybenzene)-1,3,4-thiadiazole (4), 2-(2-pyridyl)-2,4-dihydroxybenzene-1,3,4-thiadiazole (5), N-1-2,4-dihydroxybenzenecarbothio-N-3-phenyl-benzamidrazone (6) and N-1-2,4-dihydroxybenzenecarbothio-N-3-phenyl-2-picoline-amidrazone (7) were prepared and tested for their antimycotic activity. The chemical structures were confirmed by IR,H-1-NMR, EI-MS and elemental analysis. The minimal inhibitory concentration (MIC) values against dermatophytes, yeasts and moulds were determined for the estimation of potential activity in vitro. The strongest fungistatic activity for compound 5 in relation to dermatophytes was found with MIC 0.48-0.99 mug mL(-1). (C) 2001 Editions scientifiques et medicales Elsevier SAS.