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 ethyl (1R,2R,5S,6S,7S)-2-[benzotriazol-1-ylmethyl(prop-2-enyl)carbamoyl]-3-[(2S)-1-hydroxybutan-2-yl]-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]decane-6-carboxylate .
user
C26H33N5O6
assistant