Synthesis and structure–activity relationships of quaternary ammonium cephalosporins with 3-pyrazolylpyridinium derivatives
摘要:
Cephalosporins with 3-pyazolylpyridinium at C-3 position, which is supposed to exhibit synergic activity of ceftazidime and cefoselis, were synthesized and their antibacterial activity against Gram-positive and Gram-negative was inspected. (C) 2000 Elsevier Science Ltd. All rights reserved.
A compound of the formula: ##STR1## wherein R.sub.1 is 3-pyridyl or 4-pyridyl; and R.sub.2 is hydrogen or lower alkyl (C.sub.1 -C.sub.3); or a nontoxic pharmaceutically acceptable salt thereof.
Synthesis and structure–activity relationships of quaternary ammonium cephalosporins with 3-pyrazolylpyridinium derivatives
作者:Kwan Young Chang、Sung Hoon Kim、Ghilsoo Nam、Jae Hong Seo、Joong Hyup Kim、Deok-Chan Ha
DOI:10.1016/s0960-894x(00)00203-1
日期:2000.6
Cephalosporins with 3-pyazolylpyridinium at C-3 position, which is supposed to exhibit synergic activity of ceftazidime and cefoselis, were synthesized and their antibacterial activity against Gram-positive and Gram-negative was inspected. (C) 2000 Elsevier Science Ltd. All rights reserved.