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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1968209Generated: October 30, 2026

Cyclopentylamine → HCID 28165435, compound

https://huagongshe.com/reaction/1968209

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentylamineHCID 2906—
ReactantTriethylamineHCID 8471—
Reactant(2R)-2-(((tert-butoxy)carbonyl)amino)-3-methylbutanoic acidHCID 637605—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
SolventDichloromethaneHCID 6344—
ProductHCID 28165435HCID 2816543594%

Reaction Steps

To a mixture of (R)-2-(tert-butoxycarbonylamino)-3-methylbutanoic acid (0.5 g, 2.301 mmol), HATU (1.05 g, 2.76 mmol) and cyclopentanamine (0.455 mL, 4.60 mmol) in DCM (20 mL) was added Et3N (0.642 mL, 4.60 mmol). The reaction mixture was stirred at room temperature for 5 h, washed with saturated aqueous NaHCO3 and brine, dried over MgSO4, and concentrated. Purification by silica column chromatography (MeOH/DCM, 0-10%) afforded the title compound (0.61 g, 94%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420816B2
Source datasetuspto-grants-2013_04
ORD IDord-a28f55bea32c4c36806bd1ca71b8d6d5
Source noteuspto-grants-2013_04