Digilanides A, B, and C; the cardioactive precursor glycosides obtained from Digitalis lanata. Removal of the acetyl group yields desacetyllanatosides A, B, and C (purpurea glycosides A, B, and C, respectively); removal of the glucose from lanatosides A, B, and C yields acetyldigitoxin, acetylgitoxin, and acetyldigoxin, respectively; removal of glucose and the acetyl group yields digitoxin, gitoxin, and digoxin, respectively.purpurea glycosides A.