[(2R,5S)-5-(2-amino-6-chloropurin-9-yl)-1,3-oxathiolan-2-yl]methanol

[(2R,5R)-5-(2-amino-6-chloropurin-9-yl)-1,3-oxathiolan-2-yl]methanol

2-fluoro-N-[(4-nitrophenyl)methyl]-7H-purin-6-amine

[(1S)-1-氰基-2-甲基丙基]氨基甲酸苄酯

2,6-二氨基嘌呤核苷