Triethylamine → N-{1-[4-(1-cyano-1-methylethyl)-3-fluorophenyl]ethyl}-2-(6,7-difluoro-1H-benzimidazol-1-yl)acetamide

https://huagongshe.com/reaction/419991

Participants

Role	Name	HCID	Charge
Reactant	Triethylamine	HCID 8471	—
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 57939018	HCID 57939018	—
Reactant	2-[4-(1-Aminoethyl)-2-fluorophenyl]-2-methylpropanenitrile hydrochloride	HCID 66649183	—
Solvent	Dimethylformamide	HCID 6228	—
Product	N-{1-[4-(1-cyano-1-methylethyl)-3-fluorophenyl]ethyl}-2-(6,7-difluoro-1H-benzimidazol-1-yl)acetamide	HCID 24850124	—

Reaction Steps

The amide is synthesized according to modified example 1 by mixing (6,7-difluoro-1H-benzimidazol-1-yl)acetic acid (781 mg, 3.68 mmol) prepared according to scheme 2, 2-[4-(1-Aminoethyl)-2-fluorophenyl]-2-methylpropanenitrile hydrochloride (1.07 mg, 4.41 mmol) prepared according to scheme 7, Et3N (1.23 mL, 8.82 mmol) and HATU (1.68 g, 4.41 mmol) in DMF (15.0 mL). The product is purified by HPLC: Gilson prep pumps, Flow rate: 30 ml/min, Column: Gemini (5u) 21.2×50 mm, Mobile phase: A=water (0.075% TFA) B=MeCN (0.075% TFA), (565 mg as TFA salt, 1.10 mmol, 30%); 1H NMR (400 MHz, DMSO-D6) δ ppm 1.38 (d, J=6.84 Hz, 3H), 1.71 (s, 6H), 4.87-5.00 (m, J=7.23, 7.23 Hz, 1H), 5.09 (s, 2H), 7.16-7.29 (m, 3H), 7.36-7.51 (m, 2H), 8.19 (s, 1H), 8.86 (d, J=7.62 Hz, 1H). MS [M+H], calcd: 401.4. found: 401.3.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08093402B2
Source dataset	uspto-grants-2012_01
ORD ID	ord-0d1eb7784e514e998f570c23cde4dc84
Source note	uspto-grants-2012_01