You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (4S)-4-(cyclopropylmethoxymethyl)-2-ethyl-6-(pyridin-4-ylmethyl)-5,7-dihydro-4H-pyrazolo[3,4-c]pyridine ?
user
C19H26N4O
assistant