76-66-4 Corynoxan-16-carboxylic acid, 16,17-didehydro-17-methoxy-2-oxo-, methyl ester, (7.beta.,16E,20.alpha.)- Mitrinermin Mitrinermine NSC21731 RHYNCHOPHYLLINE Rhynchophyllin Rhyncophylline Rhynocophylline