Assertion: digitalis's effect | /r/IsA | cardenolide
Facets:
value: with a 5-membered lactone ring
type: OTHER
Source sentences:
text: Cardioactive steroids (CAS) are a class of compounds with a steroid nucleus and have a specific inotropic, chronotropic, and dromotropic effects that are found in plants, animals, and insects.6 Cardioactive steroids are classified as a cardenolide (with a 5-membered lactone ring) or a bufadienolide (with a 6-membered lactone ring).