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)-1-N,1-N-dimethyl-2-N-[[(6S)-2-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-6-yl]methyl]-3-phenylpropane-1,2-diamine .
user
C19H29N5
assistant