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 (1R,11R)-18-(difluoromethoxy)-6-fluoro-5-[2-(2-hydroxypropan-2-yl)-4-methylpyrimidin-5-yl]-3,9,12-triazapentacyclo[9.8.1.02,10.03,8.014,19]icosa-2(10),4,6,8,14(19),15,17-heptaen-13-one .
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C26H22F3N5O3
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