Diisopropylethylamine → HCID 66719712, compound

Participants

Role	Name	HCID	Charge
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)	HCID 2733084	—
Reactant	2,5-Dimethyl-1,3-oxazole-4-carboxylic acid	HCID 2795465	—
Reactant	(S)-2-{[(3S,8S)-3-(3'-Chloro-biphenyl-4-yl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester bis hydrochloride	HCID 66719617	—
Solvent	Dichloromethane	HCID 6344	—
Product	HCID 66719712	HCID 66719712	52.2%

Reaction Steps

(S)-2-{[(3S,8S)-3-(3′-Chloro-biphenyl-4-yl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester bis hydrochloride (0.025 g), 2,5-dimethyl-oxazole-4-carboxylic acid (0.010 g), HBTU (0.027 g) in DCM (3.0 mL), DIEA (0.019 g) was added. The reaction mixture was stirred at room temperature for 2.0 hours, poured onto a silica gel column and eluted with 1% MeOH, 1:1 hexanes-EtOAc to provide (S)-2-{[(3S,8S)-3-(3′-Chloro-biphenyl-4-yl)-7-(2,5-dimethyl-oxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester (0.0139 g).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08987295B2
Source dataset	uspto-grants-2015_03
ORD ID	ord-dcef9db817c84932b6505da2843006a8
Source note	uspto-grants-2015_03