You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R)-3-[(3E)-3-(2-amino-1,3-thiazol-4-yl)-3-[1-(methylamino)-1-oxopropan-2-yl]oxyimino-2-oxopropyl]-2-hydroxy-3,4-dihydro-1,2-benzoxaborinine-8-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H21BN4O7S
assistant