You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-cyclopentyl-N-(furan-2-ylmethyl)-4-methyl-2-pyridin-2-yl-1,3-thiazole-5-carboxamide into its molecular formula.
user
C20H21N3O2S
assistant