You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
The IUPAC name of a certain molecule is 9-(4-carbazol-9-yl-6-spiro[fluorene-9,23'-hexacyclo[12.11.0.02,7.08,13.016,24.017,22]pentacosa-1(25),2,4,6,8,10,12,14,16(24),17(22),18,20-dodecaene]-19'-yl-1,3,5-triazin-2-yl)carbazole . Can you provide its SMILES representation?
user
C1=CC=C2C(=C1)C1=CC=CC=C1C21C2=CC=C(C3=NC(N4C5=CC=CC=C5C5=CC=CC=C54)=NC(N4C5=CC=CC=C5C5=CC=CC=C54)=N3)C=C2C2=CC3=C4C=CC=CC4=C4C=CC=CC4=C3C=C21
assistant