3 deazauridine 2 Acylation 2 Aqueous solubility 2 Biotransformation 2 Candida antarctica 2 Catalysis 2 Deacylation 2 Derivatives 2 Drug products 2 Enzymatic alcoholysis 2 Enzyme activity 2 Lipase 2 Nucleosides 2 Prodrugs 2 Regioselectivity 2 alcoholysis 2 aqueous solution 2 article 2 azauridine 2 biotransformation 2 deacylation 2 drug solubility 2 drug stability 2 drug synthesis 2 lipase B 2 nonhuman 2 nucleoside derivative 2 prodrug 2 stereochemistry 2