(16E,20α)-16,17-Didehydro-9-hydroxy-17-methoxy-2-oxocorynoxan-16-carboxylic acid methyl ester;(7S,16E,20α)-16,17-Didehydro-9-hydroxy-17-methoxy-2-oxocorynoxan-16-carboxylic acid methyl ester;7-Isorotundifoline;Rotundifoline;Stipulatine
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