D-Alanine, N-[[2-[(2,2-dimethyl-1-oxopropyl)thio]ethoxy]hydroxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-(2-deoxy-2,2-dimethyl-β-D-erythro-pentofuranosyl)-6-fluoro-9H-purin-2-amine

Alanine, N-[[2-[(2,2-dimethyl-1-oxopropyl)thio]ethoxy]hydroxyphosphinyl]-, 1-methylethyl ester, 5′-ester with 9-(2-deoxy-2,2-dimethyl-β-D-erythro-pentofuranosyl)-6-fluoro-9H-purin-2-amine

N-[[P(S)]-2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[[P(R)]-2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[[P(S)]-2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]-D-alanine 1-methylethyl ester

N-[[P(R)]-2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]-D-alanine 1-methylethyl ester

N-[2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]-D-alanine 1-methylethyl ester

N-[2-Amino-N-cyclopropyl-2′-deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2′,2′-dimethyl-5′-adenylyl]alanine 1-methylethyl ester

N-[[P(S)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]-L-alanine 1-methylethyl ester

N-[[P(R)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]-L-alanine 1-methylethyl ester

N-[2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]-L-alanine 1-methylethyl ester

N-[[P(S)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]-D-alanine 1-methylethyl ester

N-[[P(R)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]-D-alanine 1-methylethyl ester

N-[2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]-D-alanine 1-methylethyl ester

N-[2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-6-O-ethyl-2′,2′-dimethyl-5′-guanylyl]alanine 1-methylethyl ester

N-[[P(S)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2-methoxy-2′,2′-dimethyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[[P(R)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2-methoxy-2′,2′-dimethyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2-methoxy-2′,2′-dimethyl-5′-adenylyl]-L-alanine 1-methylethyl ester

N-[[P(S)]-2′-Deoxy-P-[2-[(2,2-dimethyl-1-oxopropyl)thio]ethyl]-2-methoxy-2′,2′-dimethyl-5′-adenylyl]-D-alanine 1-methylethyl ester