Diisopropylethylamine → (S)-2-(4-bromo-2,6-difluorobenzoylamino)-3-[4-(1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)phenyl]propionic acid propyl ester

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	4-Bromo-2,6-difluorobenzoic acid	HCID 2773298	—
Reactant	(S)-2-amino-3-[4-(1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)phenyl]propionic acid propyl ester	HCID 86691352	—
Product	(S)-2-(4-bromo-2,6-difluorobenzoylamino)-3-[4-(1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)phenyl]propionic acid propyl ester	HCID 86691351	—

Reaction Steps

The title compound was prepared using a similar procedure as described in Example 1, Step 8, starting from (S)-2-amino-3-[4-(1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)phenyl]propionic acid propyl ester (4.67 g, 13 mmol) , 4-bromo-2,6-difluorobenzoic acid (3.12 g, 13.16 mmol), HBTU (4.99 g, 13.16 mmol), and DIPEA (6.8 mL, 39 mmol), and after ISCO column chromatography purification, resulted in an amorphous off-white solid (6.71 g, 89%). ES-HRMS m/e calcd for C26H26BrF2N3O5 (M+H)+ 578.1097, found 578.1096.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09447035B2
Source dataset	uspto-grants-2016_09
ORD ID	ord-4cad9bddb4f846cd9560bb286fb9a598
Source note	uspto-grants-2016_09