Dimethylformamide → (2R)-Methyl 3-(tert-butyldimethylsilyloxy)-2-(5-(2-(4-chlorophenyl)propanamido)-1-oxoisoquinolin-2(1H)-yl)propanoate

Participants

Role	Name	HCID	Charge
Reactant	Dimethylformamide	HCID 6228	—
Reactant	Diisopropylethylamine	HCID 81531	—
Reactant	DL-2-(4-chlorophenyl)propanoic acid	HCID 102525	—
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)-Methyl 2-(5-amino-1-oxoisoquinolin-2(1H)-yl)-3-(tert-butyldimethylsilyloxy)propanoate	HCID 67087826	—
Product	(2R)-Methyl 3-(tert-butyldimethylsilyloxy)-2-(5-(2-(4-chlorophenyl)propanamido)-1-oxoisoquinolin-2(1H)-yl)propanoate	HCID 70842291	—

Reaction Steps

A round bottom flask was charged with (R)-methyl 2-(5-amino-1-oxoisoquinolin-2(1H)-yl)-3-(tert-butyldimethylsilyloxy)propanoate (500 mg, 0.001 mol), N,N-dimethylformamide (2 mL, 0.03 mol), N,N-diisopropylethylamine (0.5 mL, 0.003 mol), N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (1 g, 0.003 mol) and 2-(4-chlorophenyl)propanoic acid (340 mg, 0.0018 mol) and the reaction stirred at room temperature overnight then for another 12 h. The solvent was removed and the residue purified by flash chromatography to yield the product as a white solid. MS m/z=545.4 (M+H).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07816371B2
Source dataset	uspto-grants-2010_10
ORD ID	ord-0011d0573681439197ab1d2579a85ff7
Source note	uspto-grants-2010_10