b-D-ribo-Hexopyranoside, 7'-[[(3b,20S)-3,17-dihydroxypregn-5-en-20-yl]oxy]octahydro-4-methoxy-6,9'-dimethylspiro[2H-pyran-2,3'(4'H)-[7H]pyrano[3,4-c][1,2,5]trioxepin]-5-ylO-6-deoxy-3-O-methyl-b-D-galactopyranosyl-(1®4)-O-2,6-dideoxy-3-O-methyl-b-D-ribo-hexopyranosyl-(1®4)-O-2,6-dideoxy-3-O-methyl-b-D-ribo-hexopyranosyl-(1®4)-2,6-dideoxy-3-O-methyl-, [3'S-[3'a(4S*,5S*,6S*),5'ab,7'a,9'a,9'aa]]-; Periplocoside F
