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

  • Chem Pharm Bull (Tokyo). 1984 May;32(5):1872-7. doi: 10.1248/cpb.32.1872.
Y Sung ,  K Koike ,  T Nikaido ,  T Ohmoto ,  U Sankawa
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