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What is the molecular formula of the molecule 9-[(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-[[tert-butyl(dimethyl)silyl]oxymethyl]oxolan-2-yl]-8-(5,12-dithiatetracyclo[6.6.2.04,16.011,15]hexadeca-1(15),2,4(16),6,8,10,13-heptaen-6-yl)purin-6-amine ?
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C42H61N5O4S2Si3
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