β,γ-CHF- and β,γ-CHCl-dGTP Diastereomers: Synthesis, Discrete 31 P NMR Signatures, and Absolute Configurations of New Stereochemical Probes for DNA Polymerases

β,γ-CHF- and β,γ-CHCl-dGTP Diastereomers: Synthesis, Discrete 31 P NMR Signatures, and Absolute Configurations of New Stereochemical Probes for DNA Polymerases