Diisopropylethylamine → ethyl 2-[4-({[2-[2-(2,4-difluorophenyl)ethyl]-4-oxo-1(4H)-quinazolinyl]acetyl} {[4'-(trifluoromethyl)-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	HCID 58788245	HCID 58788245	—
Reactant	HCID 59264610	HCID 59264610	—
Solvent	Dimethylformamide	HCID 6228	—
Product	ethyl 2-[4-({[2-[2-(2,4-difluorophenyl)ethyl]-4-oxo-1(4H)-quinazolinyl]acetyl} {[4'-(trifluoromethyl)-4-biphenylyl]methyl}amino)-1-piperidinyl]-2-methylpropanoate	HCID 25008125	64.1%

Reaction Steps

A mixture of [2-[2-(2,4-difluorophenyl)ethyl]-4-oxo-1(4H)-quinazolinyl]acetic acid (Int. C3) (120 mg, 1 equiv), ethyl 2-methyl-2-[4-({[4′-(trifluoromethyl)-4-biphenylyl]methyl}-amino)-1-piperidinyl]propanoate (Int. B2) (204 mg, 1.3 equiv), DMF (1.4 ml) and DIPEA (0.183 ml, 3 equiv) was shaken at room temperature, then HATU (206 mg, 1.5 equiv) was added with vigorous agitation and shaking continued for 1.5 h. A further portion of Intermediate D5 (12 mg, 0.1 equiv) was added then shaking was continued for 2 days. Reverse phase HPLC (Preparative Method B) gave ethyl 2-[4-({[2-[2-(2,4-difluorophenyl)ethyl]-4-oxo-1(4H)-quinazolinyl]acetyl} {[4′-(trifluoromethyl)-4-biphenylyl]methyl}amino)-1-piperidinyl]-2-methylpropanoate as a white solid (173 mg).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07705005B2
Source dataset	uspto-grants-2010_04
ORD ID	ord-dbff40039d5f42979a29ea2c82cdb03d
Source note	uspto-grants-2010_04