Cyclopropa[3,4]cyclopenta[1,2-d]-1,3-dioxol-5-ol, 3b-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-2,2-dimethyl-, (3aR,3bR,4aS,5S,5aS)- [ 915694-38-1 ]