You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-(dimethylamino)-2-oxoethyl]-methyl-[2-[[(1S)-1-naphthalen-1-ylethyl]amino]-2-oxoethyl]azanium into its molecular formula.
user
C19H26N3O2+
assistant