You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(E)-4-(ethylamino)-3,3-dimethyl-4-oxobut-1-enyl]-N-(5-hydroxy-2-adamantyl)-5-morpholin-4-ylpyrazole-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H39N5O4
assistant