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 (E)-3-[(6S,9R,10R,11S,12S,13E,15E,18S)-10,12-dihydroxy-3-(3-hydroxyphenyl)-11-methyl-2,5,8,20-tetraoxo-9-(3-oxobutyl)-6-propan-2-yl-19-oxa-1,4,7,25-tetrazabicyclo[19.3.1]pentacosa-13,15-dien-18-yl]but-2-enal ?
user
C38H52N4O10
assistant