D-eritadenine ethyl ester

5-(6-amino-purin-9-yl)-5-deoxy-pentose

methyl 5-(6-amino-purin-9-yl)-O2,O3-isopropylidene-D-5-deoxy-ribofuranoside

2,3-O-异亚丙基-D-赤酮酸内酯

6-aminopurine