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-[(7R)-8-cyclohexyl-2-(1H-indazol-5-ylamino)-7-methyl-6-oxo-7,8a-dihydro-3H-pteridin-5-yl]thiophene-2-carboxylic acid .
user
C25H27N7O3S
assistant