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 5-[2-(6-chloro-1H-indol-3-yl)acetyl]-N-[2-(methylamino)-2-oxoethyl]-2-(5-methylpyridine-2-carbonyl)-3,3a,4,6,7,7a-hexahydro-1H-pyrrolo[3,4-c]pyridine-7-carboxamide .
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C28H31ClN6O4
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