You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,5R)-5-(aminomethyl)-N-(2-methyl-4-phenylsulfanylphenyl)oxolane-2-carboxamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H23ClN2O2S
assistant