Bioorganic & Medicinal Chemistry Letters 2009-09-15

Water-soluble phosphate prodrugs of pleuromutilin analogues with potent in vivo antibacterial activity against Gram-positive pathogens.

Liqiang Fu, Zhiteng Jiang, Zhan Cai, Xin Liu, Huili He, Yushe Yang

Index: Bioorg. Med. Chem. Lett. 19(18) , 5407-10, (2009)

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Abstract

A phosphate prodrug strategy was investigated to address the problem of poor aqueous solubility of pleuromutilin analogues. Water-soluble phosphate prodrugs 6a, 6b and 6c of pleuromutilin analogues were designed and synthesized. Three compounds all exhibited excellent aqueous solubility (>50mg/mL) at near-neutral pH and sufficient stability in buffer solution. In particular, the phenol pleuromutilin prodrug 6c displayed favourable pharmacokinetic profiles and comparable potency with vancomycin against MSSA and MRSA strains in vivo.

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