TY  - JOUR
TI  - Synthesis and antimicrobial activities of 2-(5-mercapto)- 1,3-oxadiazol-2-ylmethyl-1,2,4-triazol-3-one derivatives
AB  - The synthesis of 4-amino-2-[(5-mercapto-1,3,4-oxadiazol-2-yl)methyl]-5-(4-methylphenyl)-2,4-dihydro-3H - 1,2,4-triazol-3-one (2) and 4-amino-2-[(4-amino-5-mercapto-4H -1,2,4-triazol-3-yl)methyl]-5-(4-methylphenyl)- 2,4-dihydro-3H -1,2,4-triazol-3-one (5) was performed starting from 2-[4-amino-3-(4-methylphenyl)-5-oxo- 4,5-dihydro-1H -1,2,4-triazol-1-yl]acetohydrazide (1). The treatment of 2 and 5 with 4-fluorobenzaldehyde (for 8) or salicylaldehyde (for 6) afforded the corresponding Schiff bases (6 and 8). The condensation of 5 with phenacyl bromide produced 4-amino-5-(4-methylphenyl)-2-[(6-phenyl-7H-[1,2,4]triazolo[3,4- b][1,3,4]thiadiazin-3-yl)methyl]-2,4-dihydro-3H-1,2,4-triazol-3-one (7). The alkylation of 2 and 8 was carried out by using methyl iodide in basic media. Compounds 3 and 10a,b were prepared by aminoalkylation of 2 and 8 with 4-fluorophenyl piperazine, morpholine, or 4-methyl piperazine in the presence of formaldehyde. The synthesized compounds were screened for their antimicrobial activities and, with the exception of 2, 4, 7, and 9, were found to possess good or moderate activities against the screened bacterial strains except Candida tropicalis and Candida albicans.
AU  - BEKTAŞ, Hakan
AU  - DEMİRBAŞ, NESLİHAN
AU  - DEMİRBAŞ, Ahmet
AU  - Alpay Karaoğlu, Şengül
AU  - ŞAHİN, DENİZ
PY  - 2010
JO  - Turkish Journal of Chemistry
VL  - 34
IS  - 3
SN  - 1300-0527
SP  - 347
EP  - 358
DB  - TRDizin
UR  - http://search/yayin/detay/103266
ER  -