You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2-amino-4-methyl-1,3-thiazol-5-yl)-[(3R,5R)-3-phenoxy-1-oxa-9-azaspiro[4.5]decan-9-yl]methanone into molecular formula.
user
C19H23N3O3S
assistant