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 4-amino-6-[1-cyclopropyl-4-[(E)-4-iminopent-2-en-2-yl]imidazol-2-yl]-5-methanimidoylpyridine-2-carboxamide .
user
C18H21N7O
assistant