摘要:
The synthesis, aqueous solubility and stability, in vitro antiviral activity, and oral bioavailability of the amino acid ester prodrugs of penciclovir, 13-20, 23, and 24, are described. All of the prodrugs were highly soluble (>100 mg/mL) and sufficiently stable in aqueous solution. The oral bioavailability of O-acetyl-O-L-valylpenciclovir (13) (34%) in mice was comparable to that of famciclovir (33%) and approximately 4-fold higher than that of penciclovir. Copyright (C) 1996 Elsevier Science Ltd