Synthesis and antibacterial activity of the metabolites of 9-fluoro-6,7-dihydro-8-(4-hydroxy-1-piperidyl)-5-methyl-1-oxo-1H,5H-benzo(i, j)quinolizine-2-carboxylic acid (OPC-7251).
Synthesis and antibacterial activity of the metabolites of 9-fluoro-6,7-dihydro-8-(4-hydroxy-1-piperidyl)-5-methyl-1-oxo-1H,5H-benzo(i, j)quinolizine-2-carboxylic acid (OPC-7251).
Direct Bioisostere Replacement Enabled by Metallaphotoredox Deoxydifluoromethylation
作者:Edna Mao、Cesar N. Prieto Kullmer、Holt A. Sakai、David W. C. MacMillan
DOI:10.1021/jacs.3c14460
日期:2024.2.28
alternative would be to directly convert a functional group into its corresponding bioisostere at a late stage. Herein, we report the realization of this approach through the conversion of aliphatic alcohols into the corresponding difluoromethylated analogues via the merger of benzoxazolium-mediated deoxygenation and copper-mediated C(sp3)–CF2H bond formation. The utility of this method is showcased in a variety
Synthesis and antibacterial activity of the metabolites of 9-fluoro-6,7-dihydro-8-(4-hydroxy-1-piperidyl)-5-methyl-1-oxo-1H,5H-benzo(i, j)quinolizine-2-carboxylic acid (OPC-7251).
The metabolites of 9-fluoro-6, 7-dihydro-8-(4-hydroxy-1-piperidyl)-5-methyl-1-oxo-1H, 5H-benzo[i, j]quinolizine-2-carboxylic acid (OPC-7251) (1), which has a potent antiabacterial activity against gram-positive bacteria, characteristically Propionibacterium acnes, were synthesized to confirm their structures and to examine their antibacterial activity. The structures of three major metabolites (2, 3a and 4) were identified by means of comparison with the synthetic compounds. The antibacterial activity of the metabolites (2, 3a and 4) was found to be lower than that of 1.