You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 4-[(3aR,6R,7aS)-3a-methoxy-6-pyridin-2-yloxy-3,4,5,6,7,7a-hexahydro-2H-indol-1-yl]-6-methylpyrimidin-2-amine .
user
C19H25N5O2
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