You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3,8,8-trimethyl-1-(2-methylpropyl)-5-thiophen-2-yl-5,7,9,10-tetrahydropyrimido[4,5-b]quinoline-2,4,6-trione ?
user
C22H27N3O3S
assistant