Studies on the reactivity of bicyclomycin with thiols
作者:Syed Abuzar、Harold Kohn
DOI:10.1021/ja00164a036
日期:1990.4
The chemical reactivity of the clinically important antibiotic bicyclomycin with thiols has been investigated. Emphasis has been placed on discerning the product profiles obtained with cycteine derivatives in light of earlier projections on the likely in vivo biological nucleophile in bicyclomycin-mediated transformations
Role of the C(6)-Hydroxy Group in Bicyclomycin: Synthesis, Structure, and Chemical, Biochemical, and Biological Properties
作者:Alejandro Santillán,、Xiangdong Zhang、Jon Hardesty、William R. Widger、Kohn
DOI:10.1021/jm9708386
日期:1998.3.1
the C(6) hydroxy group in 1 was essential for activity. We found that replacing the C(6)-hydroxygroup in 1 with weaker hydrogen bond donors led to low inhibitory activities in the rho-dependent ATPase and transcription termination assays. None of the bicyclomycin derivatives exhibited antibiotic activity against E. coli W3350 cells at a 32 mg/mL concentration. The apparent specificity for the C(6)-hydroxy