9-(2-chloro-6-fluorobenzyl)-6-sec-butylaminopurine
9-(2-chloro-6-fluorobenzyl)-6-isopropylaminopurine
9-(2-chloro-6-fluorobenzyl)-6-dipropylaminopurine
9-(2-chloro-6-fluorobenzyl)-6-pentylaminopurine
9-(2-chloro-6-fluorobenzyl)-6-benzylaminopurine