You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-[[(Z)-4-amino-5-(N-aminoanilino)pent-4-enoyl]amino]-2-thiophen-3-ylethyl]boronic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H23BN4O3S
assistant