Diisopropylethylamine → 1-methylethyl 2-{4-[{[2-[2-(2,3-difluorophenyl)ethyl]-4-oxopyrido[2,3-d]pyrimidin-1(4H)-yl]acetyl}({4'-[(trifluoromethyl)oxy]-4-biphenylyl} methyl)amino]-1-piperidinyl}-2-methylpropanoate

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
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	[2-[2-(2,3-difluorophenyl)ethyl]-4-oxopyrido[2,3-d]pyrimidin-1(4H)-yl]acetic acid	HCID 11187030	—
Reactant	1-Methylethyl 2-methyl-2-{4-[({4'-[(trifluoromethyl)oxy]-4-biphenylyl}methyl)amino]-1-piperidinyl}propanoate	HCID 59707038	—
Solvent	Dimethylformamide	HCID 6228	—
Product	1-methylethyl 2-{4-[{[2-[2-(2,3-difluorophenyl)ethyl]-4-oxopyrido[2,3-d]pyrimidin-1(4H)-yl]acetyl}({4'-[(trifluoromethyl)oxy]-4-biphenylyl} methyl)amino]-1-piperidinyl}-2-methylpropanoate	HCID 24812445	18.6%

Reaction Steps

A mixture of 1-methylethyl 2-methyl-2-{4-[({4′-[(trifluoromethyl)oxy]-4-biphenylyl}methyl)amino]-1-piperidinyl}propanoate (Int. B5) (80 mg, 1 equiv), [2-[2-(2,3-difluorophenyl)ethyl]-4-oxopyrido[2,3-d]pyrimidin-1(4H)-yl]acetic acid (Int. D1) (67 mg, 1 equiv), HATU (400 mg, 5 equiv), DIPEA (0.22 ml, 1.5 equiv) and DMF (2.0 ml) was stirred at room temperature for 30 min. The crude reaction mixture was applied directly to reverse-phase HPLC (Preparative Method A) to obtain 1-methylethyl 2-{4-[{[2-[2-(2,3-difluorophenyl)ethyl]-4-oxopyrido[2,3-d]pyrimidin-1(4H)-yl]acetyl}({4′-[(trifluoromethyl)oxy]-4-biphenylyl} methyl)amino]-1-piperidinyl}-2-methylpropanoate (25 mg).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08962633B2
Source dataset	uspto-grants-2015_02
ORD ID	ord-ccc943de17f64da1aff17cc032ba3d36
Source note	uspto-grants-2015_02