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 [2-[[(1S)-1-cyclopropylethyl]amino]-2-oxoethyl] (E)-3-(3-chloro-5-methoxy-4-propan-2-yloxyphenyl)prop-2-enoate .
user
C20H26ClNO5
assistant