Y. Sung

Inhibitors of cyclic AMP phosphodiesterase in Picrasma quassioides Bennet, and inhibitory activities of related beta-carboline alkaloids.

K. Koike, T. Nikaido, U. Sankawa, 1984, Chemical & pharmaceutical bulletin.

Inhibitors of cyclic adenosine 3',5'-monophosphate phosphodiesterase in Phyllostachys nigra Munro var. henonis Stapf. and Phragmites communis Trin., and inhibition by related compounds.

T. Nikaido, U. Sankawa, T. Ohmoto, 1984, Chemical & pharmaceutical bulletin.