Synonyms: 5b-Card-20(22)-enolide, 3b-[(3,4-O-cyclohexylidene-2,6-dideoxy-b-D-ribo-hexopyranosyl)oxy]-5,14-dihydroxy-19-oxo-(8CI); D-ribo-Hexopyranoside, strophanthidin-33,4-O-cyclohexylidene-2,6-dideoxy-, b- (8CI);Spiro[cyclohexane-1,2'-[4H-1,3]dioxolo[4,5-c]pyran], card-20(22)-enolide deriv.