Pyran Ester
(+)-(3R,4aR,5S,6S,6aS,10S,10aR,10bS)-Dodecahydro-5,6,10,10b-tetrahydroxy-3,4a,7,7,10a-pentamethyl-3-vinyl-1H-naphtho[2,1-b]pyran-1-one 5-acetate 6-ester with N,N-dimethyl-β-alanine
(1R)-1,2,3,4,6,11-Hexahydro-4α-[[3-(methylamino)-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl]oxy]-6,11-dioxo-2-ethyl-2α,5,7-trihydroxy-1β-naphthacenecarboxylic acid methyl ester