HCID 89668619, compound → HCID 117736058, compound

Participants

Reaction Steps

A solution of ((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-3-(((((2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy) (hydroxy)phosphoryl)oxy)tetrahydrofuran-2-yl)methyl dihydrogenphosphate (Compound 1h) (81 mg, 0.127 mmol) and (S)-cyanomethyl 2-((tert-butoxycarbonyl)amino)-6-(2,2,2-trifluoroacetamido)hexanoate (Compound tk53) (194 mg, 0.509 mmol) in acetonitrile (0.7 mL) was added to buffer A (20 mL), and the mixture was stirred at room temperature for 1.75 hours. Following lyophilization, the resulting residue was purified by reverse-phase silica gel column chromatography (0.05% aqueous trifluoroacetic acid solution/0.05% trifluoroacetic acid-acetonitrile solution) to afford (2S)-(2R,3S,4R,5R)-2-((((((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-2-((phosphonooxy)methyl)tetrahydrofuran-3-yl)oxy)(hydroxy)phosphoryl)oxy)methyl)-5-(6-amino-9H-purin-9-yl)-4-hydroxytetrahydrofuran-3-yl 2-((tert-butoxycarbonyl)amino)-6-(2,2,2-trifluoroacetamido)hexanoate (Compound tk54) (5.3 mg, 4%).

Provenance & Evidence