title: Antimicrobial activity of 9-O-acyl- and 9-O-benzoyl-substituted berberrubines.
abstract: In the course of a structure-activity relationship study on berberrubine derivatives, a series of compounds bearing 9-O-acyl-(4-6) and 9-O-benzoyl- (7) substituents was synthesized with the expectation of increasing the antimicrobial activity. One of the berberrubine derivatives, 9-lauroylberberrubine chloride was the most active against Gram-positive bacteria Enterococcus faecalis, Staphylococcus aureus, Staphylococcus epidermidis, Micrococcus luteus, Bacillus subtilis as well as the Gram-negative bacterium Klebsiella pneumoniae in comparison to berberine, the currently used antibiotic in clinic. This result suggested that the presence of lipophilic substituents of certain structures and sizes might be crucial for the optimal antimicrobial activity.
authors.forename: S W
authors.initials: SW
authors.lastname: Hong
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
authors.forename: J A
authors.initials: JA
authors.lastname: Jeun
authors.forename: S J
authors.initials: SJ
authors.lastname: Lee
authors.forename: S U
authors.initials: SU
authors.lastname: Kim
authors.forename: J H
authors.initials: JH
authors.lastname: Kim
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D001599:Berberine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology; D005658:Fungi / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D001599:Berberine; C115958:berberrubine