<(+/-)-(1α,2β,3β,4α,4aα,11bα)>-1,2,3,4,4a,11b-Hexahydro-2,3-dihydroxy-4,7-bis(phenylmethoxy)-1-<(2,2,2-trichloroacetyl)amino>-6H-<1,3>benzodioxolo<5,6-c><1>benzopyran-6-one