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 (3S,4R)-1-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]-4-(pyrazin-2-ylmethyl)pyrrolidin-3-ol .
user
C16H17F3N4O
assistant