1-Hydroxybenzotriazole → Ethyl cis(+/-)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-4-[(2,2-difluoroethyl)carbamoyl]-1,3-thiazole-5-carboxylate

Participants

Role	Name	HCID	Charge
Reactant	1-Hydroxybenzotriazole	HCID 75771	—
Reactant	2,2-Difluoroethanamine	HCID 136274	—
Reactant	1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride	HCID 2723939	—
Reactant	cis(+/-)-2-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-(ethoxycarbonyl)-1,3-thiazole-4-carboxylic acid	HCID 86648529	—
Product	Ethyl cis(+/-)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-4-[(2,2-difluoroethyl)carbamoyl]-1,3-thiazole-5-carboxylate	HCID 86648839	79.2%

Reaction Steps

The same operation as in Example (247a) was performed using cis(±)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl)-5-(ethoxycarbonyl)-1,3-thiazole-4-carboxylic acid obtained in Example (50a) (250 mg, 0.50 mmol), 2,2-difluoroethylamine (81 mg, 1.00 mmol), WSC hydrochloride (288 mg, 1.50 mmol) and 1-hydroxybenzotriazole (68 mg, 0.50 mmol), to obtain 223 mg of the title compound as a white solid (79%).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08927588B2
Source dataset	uspto-grants-2015_01
ORD ID	ord-873f1d489b764dbe9635ca84d846aaa0
Source note	uspto-grants-2015_01