You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [1,2,3,4,4a,5,6,7,8,8a-decahydroisoquinolin-4-yl(2-methylpropyl)amino]-[2-tert-butyl-6-(1,3-oxazol-2-ylmethylamino)-1,2,5,6-tetrahydropyrimidin-5-yl]methanol by IUPAC nomenclature, provide its molecular formula.
user
C26H46N6O2
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