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 1-[[(2R,3S)-5-[(2R)-1-hydroxypropan-2-yl]-3-methyl-6-oxo-8-[(E)-prop-1-enyl]-3,4-dihydro-2H-pyrido[2,3-b][1,5]oxazocin-2-yl]methyl]-1-methyl-3-propylurea .
user
C22H34N4O4
assistant