3-beta,14-Dihydroxy-5-beta-card-20(22)-enolide 3-ester with L-alanine 42716-81-4 5-beta-CARD-20(22)-ENOLIDE, 3-beta,14-DIHYDROXY-, 3-(2-AMINOPROPIONATE) (ester), 5-beta-Card-20(22)-enolide, 3-beta,14-dihydroxy-, 3-(2-aminopropionate) (ester), L- Digitoxigenin-3-beta-L-alanyl ester