5-(TERT-BUTYLDIMETHYLSILYLOXY)-4-((R)-3-(TERT-BUTYLDIMETHYLSILYLOXY)-5-PHENYLPENTYL)HEXAHYDRO-2H-CYCLOPENTA(B)FURAN-2-ONE, (3AR,4R,5R,6AS)-
5-(tert-butyldimethylsilyloxy)-4-((r)-3-(tert-butyldimethylsilyloxy)-5-phenylpentyl)hexahydro-2h-cyclopenta(b)furan-2-one, (3ar,4r,5r,6as)-