Probing the ribosomal RNA A-site with functionally diverse analogues of paromomycin—synthesis of ring I mimetics
2007
Abstract Methods were developed to selectively cleave the 2-amino-2-deoxy-α- d -glucopyranosyl ring in paromomycin. The preferentially N- and O-protected products were alkylated on the liberated C4 hydroxyl group of the deoxystreptamine subunit. Further manipulation furnished a series of aromatic, heteroaromatic, and aliphatic appendages as spatial mimics of ring I. Modest inhibitory activity was found against Staphylococcus aureus with two analogues ( 27 and 63 ), although cell-free functional transcription/translation assays were similar to paromomycin for analogue 27 .
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