5-beta-Card-20(22)-enolide, 19-oxo-3-beta,5,14-trihydroxy-, 3-(4-methylvalerate) Card-20(22)-enolide, 5,14-dihydroxy-19-oxo-3-((4-methyl-1-oxopentyl)oxy)-, (3-beta,5-beta)- FH4999000 Isocaproic acid, ester with strophanthidin Strophanthidin-3-isocaproate