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 4-[[2-[12,20-bis(dihydroxyphosphanyloxymethyl)-10,10,22,22-tetramethyl-3-oxa-23-aza-9-azoniaheptacyclo[17.7.1.15,9.02,17.04,15.023,27.013,28]octacosa-1(27),2(17),4,9(28),11,13,15,18,20-nonaen-16-yl]-3,4,5,6-tetrafluorobenzoyl]-methylamino]butanoic acid;ethane .
user
C49H64F4N3O10P2+
assistant