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What is the molecular formula of the molecule identified by (1'S,2'R,10'S,11'S,12'R)-10'-[tert-butyl(dimethyl)silyl]oxyspiro[2,4-dioxatricyclo[7.3.1.05,13]trideca-1(12),5,7,9(13),10-pentaene-3,5'-tetracyclo[10.2.1.02,11.04,9]pentadeca-4(9),6,13-triene]-3',8'-dione ?
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C31H32O5Si
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