A new type of ketolides bearing an N-aryl-alkyl acetamide moiety at the C-9 iminoether synthesis and structure–activity relationships
作者:Takashi Nomura、Tsutomu Iwaki、Tatsuro Yasukata、Koichi Nishi、Yukitoshi Narukawa、Koichi Uotani、Toshihiko Hori、Hideaki Miwa
DOI:10.1016/j.bmc.2005.07.041
日期:2005.12
A new type of ketolides, bearing an N-aryl-alkyl acetamide moiety at the C-9 iminoether and a cyclic carbonate at the G 11, 12 position was prepared and the antibacterial activities of the compounds were evaluated. Some of the derivatives showed potent antibacterial activity against both Haemophilus influenzae and Streptococcus pneumoniae, which are clinically important respiratory tract pathogens. Among the derivatives prepared, compound 5s with a quinolin-4-yl moiety was found to have potent and well-balanced activity against S. pneumoniae and H. influenzae including erythromycin-resistant strains. (c) 2005 Elsevier Ltd. All rights reserved.