You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (5S,7R)-N-(5,6,7,8-tetrahydro-4H-cyclohepta[d][1,3]thiazol-2-yl)-3-(1,2,4-triazol-1-yl)adamantane-1-carboxamide .
user
C21H27N5OS
assistant