N′-[8-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]-N,N-dibutylmethanimidamide

N′-[8-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]-N,N-dibutylmethanimidamide

N,N-Dibutyl-N′-[8-(2-deoxy-β-D-erythro-pentofuranosyl)-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]methanimidamide

N-[8-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]formamide

N′-[8-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]-N,N-dibutylmethanimidamide

N,N-Dibutyl-N′-[8-(2-deoxy-α-D-erythro-pentofuranosyl)-4,8-dihydro-4-oxoimidazo[1,2-a]-1,3,5-triazin-2-yl]methanimidamide

2-Amino-8-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-α-D-erythro-pentofuranosyl]imidazo[1,2-a]-1,3,5-triazin-4(8H)-one

2-Amino-8-[3,5-bis-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]imidazo[1,2-a]-1,3,5-triazin-4(8H)-one

Uridine, 2′,3′-O-(1-methylethylidene)-, 5′-(4-methoxybenzoate)

2-[3,5-Bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-4,7-dinitro-1(2H)-isoquinolinone

2-[3,5-Bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-4-(1-propyn-1-yl)-1(2H)-isoquinolinone

1(2H)-Isoquinolinone, 4-(bromoethynyl)-2-(2-deoxy-β-D-erythro-pentofuranosyl)-

1(2H)-Isoquinolinone, 2-(2-deoxy-β-D-erythro-pentofuranosyl)-4-(iodoethynyl)-

1(2H)-Isoquinolinone, 2-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-4-(bromoethynyl)-

1(2H)-Isoquinolinone, 2-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-4-(iodoethynyl)-

2-(2-Deoxy-β-D-erythro-pentofuranosyl)-4-ethynyl-1(2H)-isoquinolinone

1(2H)-Isoquinolinone, 2-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]-4-[(trimethylsilyl)ethynyl]-

2-(2-Deoxy-β-D-erythro-pentofuranosyl)-4-[(1E)-2-iodoethenyl]-1(2H)-isoquinolinone

2-(2-Deoxy-β-D-erythro-pentofuranosyl)-4-[(1E)-2-(trimethylsilyl)ethenyl]-1(2H)-isoquinolinone

2-(2-Deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-1-oxo-4-isoquinolinecarbonitrile