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 2-[[[(2R,3S,4R,5R)-5-(6-amino-8-chloropurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoic acid ?
user
C19H22ClN6O8P
assistant