[(3R,4aR,5S,6S,6aS,10S,10aR,10bS)-3-ethenyl-6,10,10b-trihydroxy-3,4a,7,7,10a-pentamethyl-1-oxo-5,6,6a,8,9,10-hexahydro-2H-benzo[f]chromen-5-yl] N-(2-hydroxyethyl)carbamate [(3R,4aR,5S,6S,6aS,10S,10aR,10bS)-6,10,10b-trihydroxy-3,4a,7,7,10a-pentamethyl-1-oxo-3-vinyl-5,6,6a,8,9,10-hexahydro-2H-benzo[f]chromen-5-yl] N-(2-hydroxyethyl)carbamate N-(2-hydroxyethyl)carbamic acid [(3R,4aR,5S,6S,6aS,10S,10aR,10bS)-6,10,10b-trihydroxy-3,4a,7,7,10a-pentamethyl-1-oxo-3-vinyl-5,6,6a,8,9,10-hexahydro-2H-benzo[f]chromen-5-yl] ester N-(2-hydroxyethyl)carbamic acid [(3R,4aR,5S,6S,6aS,10S,10aR,10bS)-6,10,10b-trihydroxy-1-keto-3,4a,7,7,10a-pentamethyl-3-vinyl-5,6,6a,8,9,10-hexahydro-2H-benzo[f]chromen-5-yl] ester