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 7-amino-2-[4-[2-(dimethylamino)cyclopropyl]anilino]-8-ethyl-5-oxopyrido[2,3-d]pyrimidine-6-carboxamide;hydrochloride .
user
C21H26ClN7O2
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