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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 215850Generated: October 29, 2026

3-Pentanamine → {(1S,4R)-4-[2-Chloro-6-(1-ethyl-propylamino)-purin-9-yl]-cyclopent-2-enyl}-propionyl-carbamic acid tert-butyl ester

https://huagongshe.com/reaction/215850

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-PentanamineHCID 12019—
Reactant[(1S,4R)-4-(2,6-Dichloro-purin-9-yl)-cyclopent-2-enyl]-propionyl-carbamic acid tert-butyl esterHCID 86622633—
SolventTetrahydrofuranHCID 8028—
Product{(1S,4R)-4-[2-Chloro-6-(1-ethyl-propylamino)-purin-9-yl]-cyclopent-2-enyl}-propionyl-carbamic acid tert-butyl esterHCID 86622634—

Reaction Conditions

Temperature50 °C

Reaction Steps

[(1S,4R)-4-(2,6-Dichloro-purin-9-yl)-cyclopent-2-enyl]-propionyl-carbamic acid tert-butyl ester (700 mg, 1.64 mmol) is dissolved in THF (15 mL) under an atmosphere of argon. 3-Pentylamine (315 mg, 3.61 mmol) is added and the reaction mixture is stirred at 50° C. The reaction is shown to be complete by LCMS after 18 hours. The reaction mixture is partitioned between DCM (50 mL) and 0.1 M HCl (50 mL). The organic layer is washed with water (20 mL) and brine (20 mL), dried over MgSO4, filtered and the solvent is removed in vacuo to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08193164B2
Source datasetuspto-grants-2012_06
ORD IDord-f716b118d60d46218329522b6fe4afe7
Source noteuspto-grants-2012_06