You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R,4R,5R,6R)-5-phenylmethoxy-1-(2-phenylmethoxyethyl)-6-(phenylmethoxymethyl)piperidine-3,4-diol is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H35NO5
assistant