You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 12,13,25,26-tetrabutyl-7,18-dithia-3,9,16,22-tetrazaoctacyclo[12.12.2.02,9.04,8.011,27.016,23.017,21.024,28]octacosa-1(27),2,4(8),5,11,13,17(21),19,22,24(28),25-undecaene-10,15-dione into molecular formula.
user
C38H40N4O2S2
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