Microwave-assisted synthesis of some hybrid molecules containing penicillanic acid or cephalosporanic acid moieties and investigation of their biological activities

Basoglu S., Ulker S., Alpay-Karaoglu S., DEMİRBAŞ N.

MEDICINAL CHEMISTRY RESEARCH, vol.23, no.6, pp.3128-3143, 2014 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 6
  • Publication Date: 2014
  • Doi Number: 10.1007/s00044-013-0898-4
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.3128-3143
  • Keywords: Piperazine, 1,3-Oxa(thia) zole, 5-Oxo-1,3-oxazolidine, 1,2,4-Triazole, 7-Aminocephalosporanic acid, 6-Aminopenicillanic acid, Biological activity, ANTIMICROBIAL ACTIVITIES, ANTIBACTERIAL ACTIVITY, ANTITUMOR AGENTS, SCHIFF-BASE, DERIVATIVES, DESIGN
  • Recep Tayyip Erdoğan University Affiliated: Yes


Ethyl 4-amino-2-fluorophenylpiperazin-1-carboxylates containing a 1,3-oxazol(idin)e, 5-thioxo-1,2,4-triazole, 1,3,4-thiadiazole, 5-thioxo-1,3,4-oxadiazole, or 1,3-thiazole nucleus were obtained starting from ethyl piperazine-1-carboxylate (1) by several steps. The treatment of amine, 3 or hydrazide, 9 with several aromatic aldehydes generated the corresponding arylmethyleneamino (3a-f) or arylidenehydrazino (12a-c) compounds. The Mannich reaction between the 1,2,4-triazole or 1,3,4-oxadiazole compounds and 7-aca produced cephalosporanic acid derivatives. Penicillanic acid derivatives were obtained when 6-apa was used in the Mannich reactions. The synthesized compounds were screened for their antimicrobial, antilipase, and antiurease activities. Some of them were found to possess good-moderate antimicrobial activity against the test microorganisms. Two compounds exhibited antiurease activity, and four of them displayed antilipase activity.