[5-(Adenin-9-yl)-5-deoxypentofuranosyl]phosphonates - A Novel Type of Nucleotide Analogs Related to HPMPA. I. Derivatives with L-arabino, D-arabino, 2-Deoxy-L-erythro and 2-Deoxy-L-threo Configuration
[5-(Adenin-9-yl)-5-deoxypentofuranosyl]phosphonates - A Novel Type of Nucleotide Analogs Related to HPMPA. I. Derivatives with L-arabino, D-arabino, 2-Deoxy-L-erythro and 2-Deoxy-L-threo Configuration