(2aR,4S,4aS,6R,11S,12S,12aR,12bS)-12-benzoyloxy-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-4-triethylsilyloxy-3,4,4a,5,6,9,10,11,12,12a-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,12b(2aH)diyl diacetate

(S)-3-(Chloromethyl-dimethyl-silanyloxy)-2,2-dimethyl-cyclohexanone

(1S,5S)-3,3,9,9-Tetramethyl-2-oxa-3-sila-bicyclo[3.3.1]nonan-5-ol

(S)-7-Iodo-2,2,6,6,8-pentamethyl-1,3-dioxa-spiro[4.5]dec-7-ene

3-bromo-2,2,4-trimethylcyclohex-3-ene carbonyl chloride