You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 1-[5-[[[2-[[[2-[[[2-[[[5-(2-amino-6-oxo-1H-purin-9-yl)-2-[[[2-[[[2-[[[2-[[[2-[[[2-[[[5-(2-amino-6-oxo-1H-purin-9-yl)-2-[[[5-(2-amino-6-oxo-1H-purin-9-yl)-2-[[[5-(2-amino-6-oxo-1H-purin-9-yl)-2-[[[5-(2-amino-6-oxo-1H-purin-9-yl)-2-[[[2-[[[2-[[[2-[[[5-(2-amino-6-oxo-1H-purin-9-yl)-2-(hydroxymethyl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(6-aminopurin-9-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(6-aminopurin-9-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(6-aminopurin-9-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-5-(6-aminopurin-9-yl)oxolan-3-yl]oxy-hydroxyphosphinothioyl]oxymethyl]-4-hydroxyoxolan-2-yl]-5-methylpyrimidine-2,4-dione ?
user
C175H220N71O88P17S17
assistant