Importance of the thiomorpholine introduction in new pyrrole derivatives as antimycobacterial agents analogues of BM 212
摘要:
During the course of our investigations in the field of azole antimicrobial agents, we have identified BM 212, a pyrrole derivative with good in vitro activity against mycobacteria and candidae. These findings prompted us to prepare new pyrrole derivatives 1-10 in the hope of increasing the activity. The microbiological data showed interesting in vitro activity against Mycobacterium tuberculosis and atypical mycobacteria. (C) 2002 Elsevier Science Ltd. All rights reserved.
The rhodium catalysed 1,4-carbonylative addition of arylboronic acids to methyl vinylketone under carbon monoxide pressure was studied. High yields of 1,4-diketones were obtained using a catalytic system formed from Rh(COD)2BF4 (COD=1,5-cyclooctadiene) and triphenylphosphine even at very low catalyst loading (0.02 mol %). A short synthetic procedure combining this carbonylation reaction with a subsequent