Cyclopentanesulfonyl chloride → (S)-2-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-N-(1-(cyclopentylsulfonyl)pyrrolidin-3-yl)-5-fluoropyrimidin-4-amine

Participants

Role	Name	HCID	Charge
Reactant	Cyclopentanesulfonyl chloride	HCID 3717197	—
Reactant	(S)-2-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoro-N-(1-(methylsulfonyl)pyrrolidin-3-yl)pyrimidin-4-amine	HCID 68008525	—
Product	(S)-2-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-N-(1-(cyclopentylsulfonyl)pyrrolidin-3-yl)-5-fluoropyrimidin-4-amine	HCID 67285239	20%

According to the procedure for compound 398 using cyclopentanesulfonyl chloride (97 mg, 0.57 mmol) afforded 9.7 mg (20% yield) of 403, as a solid.