2-Chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide

It acts as a key building block in the pyrrolo[3-d]pyrimidine core construction, typically coupled with 5-piperazin-1-yl-pyridin-2-ylamine to form the final active pharmaceutical ingredient (API). 2-Chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[3-d]pyrimidine-6-carboxamide is a critical, advanced intermediate employed to synthesize the CDK4/6 inhibitor drug Ribociclib.

API Name Ribociclib
CAS No 1211443-61-6
Molecular Formula C14H17ClN4O
Molecular Weight 292.76 g/mol
Synonyms 2-chloro-7-cyclopentyl-N,N-dimethylpyrrolo[2,3-d]pyrimidine-6-carboxamide

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