Cyclopentylamine → HCID 44234766, compound

DIPEA (300 mg, 2.3 mmol) was added to a stirred solution of 1-Cyclopentyl-1H-[1,2,3]triazole-4-carboxylic acid (75 mg, 0.41 mmol (prepared by the method used for the synthesis of Intermediate 64, starting from cyclopentylamine) in DMF (5 mL) followed by HOBt (61 mg, 0.4 mmol) and EDCI (200 mg, 1 mmol). After 2 minutes of stirring, 2-amino-1-[4-(5-chloro-pyridin-3-yloxy)-piperidin-1-yl]-ethanone hydrochloride (prepared according to Step 1 and 5 of the General Scheme) (156 mg, 0.5 mmol) was added and the resulting mixture was stirred at ambient temperature overnight. Cold water was then added and filtered the precipitate was filtered. The solid obtained was purified by recrystallisation from a solvent system EtOAc:hexane:MeOH (3:7:0.2) to afford 98 mg (55% Yield) of 1-cyclopentyl-1H-[1,2,3]triazole-4-carboxylic acid {2-[4-(5-chloro-pyridin-3-yloxy)-piperidin-1-yl]-2-oxo-ethyl}-amide. LC/MS [M+H]+ 433, 98.59%. 1H NMR (300 MHz, DMSO-d6): δ 8.7 (s, 1H), 8.34 (m, 2H), 8.24 (s, 1H), 7.74 (s, 1H), 5.1 (m, 1H), 4.9 (m, 1H), 4.2 (d, 2H), 4.0 (bs, 1H), 3.8 (bs, 1H), 3.4 (s, 1H), 3.3 (m, 1H), 2.3 (m, 2H), 2.1 (m, 4H), 1.9-1.5 (m, 6H).

1. customprepared by the method
2. additionwas added
3. stirringthe resulting mixture was stirred at ambient temperature overnight
4. filtrationfiltered the precipitate
5. filtrationwas filtered
6. customThe solid obtained
7. customwas purified by recrystallisation from a solvent system EtOAc:hexane:MeOH (3:7:0.2)

ORD record

ord-4fc2633cb1e048f592698b6960128ec6

Source dataset

uspto-grants-2012_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08129376B2