You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(3R)-3-[[(2S)-1-ethoxy-1-oxo-4-(1-phenylmethoxycarbonylpiperidin-4-yl)butan-2-yl]amino]-4-oxo-2,3-dihydro-1,5-benzothiazepin-5-yl]acetic acid;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H38ClN3O7S
assistant