Triethylamine → N-Methoxy-N-methylthieno[3,2-c]pyridine-2-carboxamide

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
Reactant	Methanamine, N-methoxy-, hydrochloride (1:1)	HCID 81138	—
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	Thieno[3,2-c]pyridine-2-carboxylic acid	HCID 13580293	—
Solvent	Dimethylformamide	HCID 6228	—
Solvent	Dichloromethane	HCID 6344	—
Product	N-Methoxy-N-methylthieno[3,2-c]pyridine-2-carboxamide	HCID 86671431	—

Reaction Steps

To a solution of thieno[3,2-c]pyridine-2-carboxylic acid (D′-1) (11.5 g, 64.2 mmol) in DCM (200 mL) and DMF (50 mL) was added Et3N (19.5 g, 26.6 mL, 192.6 mmol) followed by HATU (36.6 g, 96.3 mmol). The reaction solution was stirred at room temperature for 20 mins, and then treated with N,O-dimethylhydroxylamine hydrochloride (6.9 g, 70.6 mmol). Stirring continued overnight at room temperature. The solvent was removed. The residue was dissolved in EtOAc and washed with water and brine. The organic layer was dried and concentrated. The residue was purified by chromatography on silica gel to give the title compound. MS (m/z): 223 (M+1)+.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08507487B2
Source dataset	uspto-grants-2013_08
ORD ID	ord-e6c45ab05544423b939eb2dd8c7d8675
Source note	uspto-grants-2013_08