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 2-(3,4a,5,6,7,7a-hexahydro-2H-cyclopenta[b][1,4]oxazin-4-yl)-4-methylbenzenecarboximidamide .
user
C15H21N3O
assistant