You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (9R,14S)-14-[6-[5-chloro-2-(difluoromethoxy)phenyl]-2-oxo-1,3-oxazinan-3-yl]-17-cyano-5-(methoxycarbonylamino)-8,16,18-triazatricyclo[13.2.1.02,7]octadeca-1(17),2(7),3,5,15-pentaene-9-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C30H29ClF2N6O7
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