You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1H-benzimidazol-2-yl-[4-[3-[(3R)-3-(2-hydroxypropan-2-yl)piperidin-1-yl]pyrazin-2-yl]oxyphenyl]methanone .
user
C26H27N5O3
assistant