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 (2R,4S)-3-butyl-7-(2H-tetrazol-5-yl)-8,9-diazatricyclo[4.3.0.02,4]nona-1(6),7-diene .
user
C12H16N6
assistant