You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
13,13-bis(4-methoxyphenyl)-1',1',5',5'-tetramethylspiro[6,12-dioxahexacyclo[15.7.0.02,10.03,7.011,16.019,24]tetracosa-1(17),2(10),3(7),8,11(16),14,19,21,23-nonaene-18,3'-cyclohexane];9-ethyl-14,14-bis(4-methoxyphenyl)-15,25-dioxaheptacyclo[15.11.0.02,10.03,8.011,16.018,26.019,24]octacosa-1(17),2(10),3,5,7,11(16),12,18(26),19,21,23,27-dodecaen-9-ol;10-methoxy-5,5-bis(4-methoxyphenyl)-1',1',5',5'-tetramethylspiro[6-oxapentacyclo[12.7.0.02,7.08,13.015,20]henicosa-1(14),2(7),3,8(13),9,11,15,17,19-nonaene-21,3'-cyclohexane];[4-[10-methoxy-5-(4-methoxy-3-morpholin-4-ylphenyl)-5-(4-methoxyphenyl)spiro[6-oxapentacyclo[12.7.0.02,7.08,13.015,20]henicosa-1(14),2(7),3,8,10,12,15,17,19-nonaene-21,2'-bicyclo[2.2.1]heptane]-11-yl]phenyl]methanol is the IUPAC name of a molecule. Please give its molecular formula.
user
C183H169NO19
assistant