"6,7,8,9-TETRAHYDRO-2''H,5''H-SPIRO[BENZO[7]ANNULENE-5,4''-IMIDAZOLIDINE]-2'',5''-DIONE"
"6,7,8,9-TETRAHYDRO-2''H,5''H-SPIRO[BENZO[7]ANNULENE-5,4''-IMIDAZOLIDINE]-2'',5''-DIONE"
"6,7,8,9-TETRAHYDRO-2''H,5''H-SPIRO[BENZO[7]ANNULENE-5,4''-IMIDAZOLIDINE]-2'',5''-DIONE"