You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-[3-[[3a-(6-aminopurin-9-yl)-2,2-dimethyl-6,6a-dihydro-4H-furo[3,4-d][1,3]dioxol-6-yl]methyl-propan-2-ylamino]cyclobutyl]-N-(2-amino-4-tert-butylphenyl)propanamide .
user
C33H48N8O4
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