{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T06:54:28Z","timestamp":1775372068993,"version":"3.50.1"},"reference-count":30,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2013,8,21]],"date-time":"2013-08-21T00:00:00Z","timestamp":1377043200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"name":"National Institute of Technology, Warangal"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ISRN Organic Chemistry"],"published-print":{"date-parts":[[2013,8,21]]},"abstract":"<jats:p>A series of novel pyranochromene-containing tetrazoles fused with pyrimidinethiones, pyrimidines, and diazepines <jats:bold>3a\u2013f<\/jats:bold>, <jats:bold>4a\u2013f<\/jats:bold>, and <jats:bold>5a\u2013f<\/jats:bold> were synthesized by condensation of the corresponding tetrazoles <jats:bold>2a\u2013f<\/jats:bold> with carbon disulfide, benzaldehyde, and 4-methoxy phenacyl bromide, respectively. The compound <jats:bold>2a\u2013f<\/jats:bold> was obtained by reaction of pyrano[3,2-<jats:italic>c<\/jats:italic>]chromenes <jats:bold>1a\u2013f<\/jats:bold> with sodium azide. The structures of the newly synthesized compounds <jats:bold>2a\u2013f<\/jats:bold> to <jats:bold>5a\u2013f<\/jats:bold> were established on the basis of their elemental analyses, IR, <jats:sup>1<\/jats:sup>H NMR, <jats:sup>13<\/jats:sup>C NMR, and mass spectral data. All of the title compounds were subjected to <jats:italic>in vitro<\/jats:italic> antibacterial testing against four pathogenic strains and antifungal screening against two fungi. Preliminary results indicate that some of them exhibited promising activities and that they deserve more consideration as potential antimicrobials.<\/jats:p>","DOI":"10.1155\/2013\/635384","type":"journal-article","created":{"date-parts":[[2013,8,21]],"date-time":"2013-08-21T21:03:04Z","timestamp":1377118984000},"page":"1-9","source":"Crossref","is-referenced-by-count":2,"title":["Design, Synthesis, and <i>In Vitro<\/i> Antimicrobial Evaluation of Fused Pyrano[3,2-<i>e<\/i>]tetrazolo[1,5-<i>c<\/i>]pyrimidines and Diazepines"],"prefix":"10.1155","volume":"2013","author":[{"given":"Sankari","family":"Kanakaraju","sequence":"first","affiliation":[{"name":"Department of Chemistry, National Institute of Technology, Warangal, Andhra Pradesh 506 004, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Sagar Vijay Kumar","sequence":"additional","affiliation":[{"name":"Department of Chemistry, National Institute of Technology, Warangal, Andhra Pradesh 506 004, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bethanamudi","family":"Prasanna","sequence":"additional","affiliation":[{"name":"Department of Chemistry, National Institute of Technology, Warangal, Andhra Pradesh 506 004, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G. 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