4-Piperidinamine → 3-[2-(4-amino-1-piperidinyl)-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-N-cyclopropyl-4-methylbenzamide

Participants

Role	Name	HCID	Charge
Reactant	4-Piperidinamine	HCID 424361	—
Reactant	N-cyclopropyl-3-[8-(2,6-difluorophenyl)-2-(methylsulfonyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzamide	HCID 57434545	—
Product	3-[2-(4-amino-1-piperidinyl)-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-N-cyclopropyl-4-methylbenzamide	HCID 11947899	—

Reaction Steps

The title compound is prepared from compound N-cyclopropyl-3-[8-(2,6-difluorophenyl)-2-(methylsulfonyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylbenzamide and 4-piperidinamine by following the General Procedure for Sulfoxide/Sulfone/Sulfone Displacement, as disclosed above. The concentrated reaction mixture is precipitated with ethyl acetate/hexanes, and filtered. The desired product is obtained as a yellow solid (75 mg, 100%) 94% pure by HPLC: LC-MS m/z 531 (M+H)+, 1.65 min (ret time).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08207176B2
Source dataset	uspto-grants-2012_06
ORD ID	ord-551892f2382541c2a7625af1536d1058
Source note	uspto-grants-2012_06