Osteoadsorptive Bisphosphonate Derivatives of Fluoroquinolone Antibacterials
摘要:
Bisphosphonates conjugated to fluoroquinolone antibacterials through an intermediate carbon had better activity than conjugates lacking the carbon. Virtually all molar-based activity of these esterified bisphosphonate derivatives was identical to that of its parent. De-esterified free-acid forms retained good activity against most Gram-negative bacteria, but not against Gram-positives. A free-acid derivative remained bound to washed bone and completely inhibited Staphylococcus aureus growth. The more potent parent, ciprofloxacin, failed to bind significantly, and bacterial growth occurred.
Osteoadsorptive Bisphosphonate Derivatives of Fluoroquinolone Antibacterials
摘要:
Bisphosphonates conjugated to fluoroquinolone antibacterials through an intermediate carbon had better activity than conjugates lacking the carbon. Virtually all molar-based activity of these esterified bisphosphonate derivatives was identical to that of its parent. De-esterified free-acid forms retained good activity against most Gram-negative bacteria, but not against Gram-positives. A free-acid derivative remained bound to washed bone and completely inhibited Staphylococcus aureus growth. The more potent parent, ciprofloxacin, failed to bind significantly, and bacterial growth occurred.
Osteoadsorptive Bisphosphonate Derivatives of Fluoroquinolone Antibacterials
作者:Pál Herczegh、Thomas B. Buxton、James C. McPherson、Árpád Kovács-Kulyassa、Phyllis D. Brewer、Ferenc Sztaricskai、Gary G. Stroebel、Kent M. Plowman、Dan Farcasiu、John F. Hartmann
DOI:10.1021/jm0105326
日期:2002.5.1
Bisphosphonates conjugated to fluoroquinolone antibacterials through an intermediate carbon had better activity than conjugates lacking the carbon. Virtually all molar-based activity of these esterified bisphosphonate derivatives was identical to that of its parent. De-esterified free-acid forms retained good activity against most Gram-negative bacteria, but not against Gram-positives. A free-acid derivative remained bound to washed bone and completely inhibited Staphylococcus aureus growth. The more potent parent, ciprofloxacin, failed to bind significantly, and bacterial growth occurred.