You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,6S,9S,12R,15S,18S,21S,24S,27S,30S,33S)-33-[(1R,2R)-8-amino-1-hydroxy-2-methyloctyl]-30-ethyl-27-(4-hydroxybutylsulfanylmethyl)-1,4,7,10,12,15,19,25,28-nonamethyl-6,9,18,24-tetrakis(2-methylpropyl)-3,21-di(propan-2-yl)-1,4,7,10,13,16,19,22,25,28,31-undecazacyclotritriacontane-2,5,8,11,14,17,20,23,26,29,32-undecone;ethyl 2-bromoacetate;ethyl 2-[(2-ethoxy-2-oxoethyl)-[(7R,8R)-8-[(2S,5S,8S,11S,14S,17S,20S,23R,26S,29S,32S)-5-ethyl-8-(4-hydroxybutylsulfanylmethyl)-1,7,10,16,20,23,25,28,31-nonamethyl-11,17,26,29-tetrakis(2-methylpropyl)-3,6,9,12,15,18,21,24,27,30,33-undecaoxo-14,32-di(propan-2-yl)-1,4,7,10,13,16,19,22,25,28,31-undecazacyclotritriacont-2-yl]-8-hydroxy-7-methyloctyl]amino]acetate;ethyl 2-[[(7R,8R)-8-[(2S,5S,8S,11S,14S,17S,20S,23R,26S,29S,32S)-5-ethyl-8-(4-hydroxybutylsulfanylmethyl)-1,7,10,16,20,23,25,28,31-nonamethyl-11,17,26,29-tetrakis(2-methylpropyl)-3,6,9,12,15,18,21,24,27,30,33-undecaoxo-14,32-di(propan-2-yl)-1,4,7,10,13,16,19,22,25,28,31-undecazacyclotritriacont-2-yl]-8-hydroxy-7-methyloctyl]amino]acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C223H409BrN36O47S3
assistant