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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1445752Generated: October 30, 2026

1,2-Dichloroethane → HCID 58951437, compound

https://huagongshe.com/reaction/1445752

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant(2R)-(-)-2-Methylpyrrolidine hydrochlorideHCID 11147704—
Reactant5-Methyl-2-[4-(phenylmethoxy)phenyl]-4-oxazoleacetic acidHCID 22261171—
SolventDichloromethaneHCID 6344—
ProductHCID 58951437HCID 5895143747.1%

Reaction Steps

To a mixture of [2-(4-Benzyloxy-phenyl)-5-methyl-oxazol-4-yl]-acetic acid [CAS 403611-89-2] (2.2 g, 6.8 mmol) in CH2Cl2 (40 mL) is added EDC (1.57 g, 8.2 mmol) and HOBT (1.11 g, 8.2 mmol). After a few minutes, (R)-2-methylpyrrolidine hydrochloride [CAS 41720-98-3] (1.0 g, 8.2 mmol) and DIPEA (2.5 mL, 13.6 mmol) are added. The mixture is stirred at room temperature overnight. The mixture is partitioned between EtOAc and water. The aqueous phase is extracted with EtOAc (2×), and the combined organic phase is washed with brine, dried (Na2SO4), and concentrated. The residue is purified by flash chromatography [120 g SiO2, elute gradient 30% EtOAc/hexane to 80% EtOAc/hexane) to yield 1.25 g of the title compound as a yellow oil. MS (m/e): 391.2 (M+1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07666871B2
Source datasetuspto-grants-2010_02
ORD IDord-fc39cc0e88674219939956a339fcc1b6
Source noteuspto-grants-2010_02