2-Aminothiazole → 4-[2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-N-1,3-thiazol-2-ylbenzamide

Participants

Role	Name	HCID	Charge
Reactant	2-Aminothiazole	HCID 2155	—
Reactant	Triethylamine	HCID 8471	—
Reactant	Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 2733084	—
Reactant	4-[2-{[3-(Diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]benzoic acid	HCID 57434625	—
Solvent	Dimethylformamide	HCID 6228	—
Product	4-[2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-N-1,3-thiazol-2-ylbenzamide	HCID 59212756	18%

Reaction Steps

To the compound 4-[2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]benzoic acid (28 mg, 0.055 mmol) in DMF (0.5 mL) were added HBTU (25 mg, 0.066 mmol), triethylamine (15.5 uL, 0.11 mmol) and 2-aminothiazole (8.26 mg, 0.0825 mmol). The mixture was stirred at rt overnight. Separation by HPLC with TFA, followed by neutralization with SPE amine cartridge afforded the title compound (5.8 mg, 18%). LC-MS m/z 590 (M+H)+.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08354416B2
Source dataset	uspto-grants-2013_01
ORD ID	ord-093ecd3eac1d47b09e281544f8fe8246
Source note	uspto-grants-2013_01