(6S)-6-[[TERT-BUTYLDIMETHYLSILYLOXY]-1,3,4,5,6,7-HEXAHYDRO-1-[(E)-[(1R,3AS,7AR)-OCTAHYDRO-1-[(1S)-2-IODO-1-METHYLETHYL]-7A-METHYL-4H-INDEN-4-YLIDENE]METHYL]BENZO[C]THIOPHENE 2,2-DIOXIDE