Showing structure for n-{2-[(2s,5r)-5-[(1s,4s,4as,7r,8r,8as)-7-hydroxy-4,7-dimethyl-4,8-bis(methylideneamino)-octahydronaphthalen-1-yl]-5-methyloxolan-2-yl]propan-2-yl}carboximidic acid