p. 2695 - 2704
(2007/10/02)diethyl (p-toluenesulfonyloxymethane)phosphonate
9-<(1'β,4'β)-4'-(3''-hydroxypropoxy)cyclopent-2'-enyl>-6-methoxy-2-(N-monomethoxytriphenylmethylamino)purine
6-oxabicyclo<3.1.0>hex-2-ene
2-amino-6-chloro-9<(1'β,4'β)-4'-hydroxycyclopent-2'-enyl>purine
2-amino-9<(1'β,4'β)-4'-hydroxycyclopent-2'-enyl>-6-methoxypurine