You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by N,N-dimethyl-2-[(2S)-2-[2-methyl-6-[(4-methyl-1,3-thiazol-2-yl)amino]pyrimidin-4-yl]piperidin-1-yl]acetamide ?
user
C18H26N6OS
assistant