Synthesis and antibacterial property of pyrrolopyrano quinolinones and pyrroloquinolines
摘要:
Synthesis of a series of novel pyrroloquinolinone and pyrroloquinoline derivatives has been accomplished by intramolecular domino Knoevenagel hetero Diels-Alder reaction and intramolecular imino Diels-Alder reaction. These compounds were evaluated for their antibacterial activity against bacterial pathogens using disc diffusion and broth dilution methods. The efficacy of binding of these compounds to gyrase, an enzyme known to play a key role in bacterial replication is examined by studying its supercoiling and relaxation and also its gene expression using PCR method. The results indicated that most of the synthesised compounds exhibited good antibacterial activity against the microorganisms with MIC values of 5 mM and could inhibit gyrase effectively leading to cell death. (C) 2011 Elsevier Masson SAS. All rights reserved.
An efficient synthesis of pyrano [4,5-c] pyrrole derivatives through microwave—accelerated intramolecular Knoevenagal hetero Diels–Alder reaction
作者:Mathesan Jayagobi、Raghavachary Raghunathan
DOI:10.1016/j.tetlet.2009.09.136
日期:2009.12
Synthesis of novel pyranopyrrole derivatives has been achieved by a one-pot IMHDA reaction of N-substituted aldehydes with various diones in the presence of ethylene diaminediacetate (EDDA) in excellent yields under mild conditions. (C) 2009 Elsevier Ltd. All rights reserved.