title: Synthesis and antibacterial activity of novel 4''-carbamates of 6,11-di-O-methylerythromycin A.
abstract: A novel series of 4''-carbamates of 6,11-di-O-methylerythromycin A were synthesized and evaluated. These compounds have significant antibacterial activity against Gram-positive pathogens, including erythromycin-resistant but methicillin-susceptible Staphylococcus aureus, erythromycin-resistant and methicillin-resistant Staphylococcus aureus, erythromycin-resistant Streptococcus pneumoniae and Gram-negative pathogens, such as Haemophilus influenzae To our surprise, most of the derivatives tested had potent activity against most resistant bacteria. Among these, compounds 10u, 10v, 10w and 10y were found to have potent activity against most susceptible and resistant bacteria. In particular, compound 10y exhibited excellent antibacterial activity in comparison to others.
authors.affiliation: College of Pharmacy, Wuhan University, Wuhan, China.
authors.forename: Zhongyuan
authors.initials: Z
authors.lastname: Wu
authors.forename: Yong
authors.initials: Y
authors.lastname: Lu
authors.forename: Ming
authors.initials: M
authors.lastname: Luo
authors.forename: Xianran
authors.initials: X
authors.lastname: He
authors.forename: Yuling
authors.initials: Y
authors.lastname: Xiao
authors.forename: Jin
authors.initials: J
authors.lastname: Yang
authors.forename: Yuanhu
authors.initials: Y
authors.lastname: Pan
authors.forename: Guofu
authors.initials: G
authors.lastname: Qiu
authors.forename: Yinya
authors.initials: Y
authors.lastname: Xu
authors.forename: Wenhong
authors.initials: W
authors.lastname: Huang
authors.forename: Ping
authors.initials: P
authors.lastname: Long
authors.forename: Ruimin
authors.initials: R
authors.lastname: Li
authors.forename: Xianming
authors.initials: X
authors.lastname: Hu
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D004917:Erythromycin / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D006193:Haemophilus influenzae / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D016106:Methicillin Resistance; D055624:Methicillin-Resistant Staphylococcus aureus / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D013211:Staphylococcus aureus / Q000187:drug effects; D013296:Streptococcus pneumoniae / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D004917:Erythromycin