Triethylamine → (2R)-2-((4-Amino-3-(2-fluoro-4-phenoxyphenyl)-1H-pyrazolo(3,4-d)pyrimidin-1-yl)methyl)-beta-oxo-1-pyrrolidinepropanenitrile

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	Cyanoacetic acid	HCID 9740	—
Reactant	Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 9886157	—
Reactant	(R)-3-(2-fluoro-4-phenoxyphenyl)-1-(pyrrolidin-2-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine	HCID 71015321	—
Solvent	Water	HCID 962	—
Solvent	Dimethylformamide	HCID 6228	—
Product	(2R)-2-((4-Amino-3-(2-fluoro-4-phenoxyphenyl)-1H-pyrazolo(3,4-d)pyrimidin-1-yl)methyl)-beta-oxo-1-pyrrolidinepropanenitrile	HCID 71015721	98.6%

Reaction Conditions

Temperature	25 °C

Reaction Steps

Into a 100 mL, round-bottom flask, was placed 3-(2-fluoro-4-phenoxyphenyl)-1-[(2R)-pyrrolidin-2-ylmethyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (278 mg, 0.69 mmol, 1.00 equiv), 2-cyanoacetic acid (36.8 mg, 0.43 mmol, 0.80 equiv), HATU (210 mg, 0.55 mmol. 0.80 equiv), triethylamine (109 mg. 1.08 mmol, 2.00 equiv), and N,N-dimethylformamide (50 mL). The resulting solution was stirred for 3 h at 25° C., then diluted with 200 mL of water and extracted with ethyl acetate and the organic layers combined, dried and concentrated under vacuum. The residue was loaded onto a silica gel column and eluted with dichloromethane/methanol (50/1) to give 200 mg (62%) of 3-[(2R)-2-[[4-amino-3-(2-fluoro-4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]methyl]pyrrolidin-1-yl]-3-oxopropane-nitrile as a yellow solid.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08962831B2
Source dataset	uspto-grants-2015_02
ORD ID	ord-5dc33007f6a243b5b4614b168225dcea
Source note	uspto-grants-2015_02