(1R,2R,4S)-2-((R)-1,2-Dihydroxyethyl)-3,6-diphenylbicyclo[2.2.0]hexane-1,2,4,5-tetraol 25g

(1R,2R,4S)-2-((R)-1,2-Dihydroxyethyl)-3,6-diphenylbicyclo[2.2.0]hexane-1,2,4,5-tetraol 25g