Gitoxin

Gitoxin is a natural Na+/K+-ATPase inhibitor and metabolite of digitoxin, exhibiting antiarrhythmic activity with μM-level inhibition of human erythrocyte isoenzymes.

O[C@@]12[C@]3([C@@]([C@]4(C)[C@](CC3)(C[C@@H](O[C@H]5C[C@H](O)[C@H](O[C@H]6C[C@H](O)[C@H](O[C@H]7C[C@H](O)[C@H](O)[C@@H](C)O7)[C@@H](C)O6)[C@@H](C)O5)CC4)[H])(CC[C@]1(C)[C@H]([C@@H](O)C2)C8=CC(=O)OC8)[H])[H]