(3′S,4′R,5′S)-2,3′,4′-Trihydroxy-4a,5′,6a,7-tetramethyl-2,3,3′,4,4′,4a,4b,5,5′,6,6′,6a,6b,7,9,9a,10,10a,10b,11-icosahydro-1H-spiro[pentaleno[2,1-a]phenanthrene-8,2′-pyran]-4-yl 6-deoxy-β-D-allopyra nosyl-(1->2)-[β-D-ribopyranosyl-(1->3)]-β-D-ribopyranoside

(3′S,4′R,5′S)-2,3′,4′-Trihydroxy-4a,5′,6a,7-tetramethyl-2,3,3′,4,4′,4a,4b,5,5′,6,6′,6a,6b,7,9,9a,10,10a,10b,11-icosahydro-1H-spiro[pentaleno[2,1-a]phenanthrene-8,2′-pyran]-4-yl 6-deoxy-β-D-allopyra nosyl-(1->2)-[β-D-ribopyranosyl-(1->3)]-β-D-ribopyranoside

β-D-Ribopyranoside, (3′S,4′R,5′S)-2,3,3′,4,4′,4a,4b,5,5′,6,6′,6a,6b,7,9,9a,10,10a,10b,11-eicosahydro-2,3′,4′-trihydroxy-4a,5′,6a,7-tetramethylspiro[pentaleno[2,1-a]phenanthrene-8(1H),2′-[2H]pyran]- 4-yl O-6-deoxy-β-D-allopyranosyl-(1->2)-O-[β-D-ribopyranosyl-(1->3)]-

Caudaside A