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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1453219Generated: October 30, 2026

1,2-Dichloroethane → HCID 178489970, compound

https://huagongshe.com/reaction/1453219

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantTriethylamineHCID 8471—
Reactant2-(3-Methyl-1,2-oxazol-5-yl)acetic acidHCID 4195532—
Reactant6-Cyclopentyl-6-[2-(2,4-dimethoxyphenyl)ethyl]tetrahydropyran-2,4-dioneHCID 16728700—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 178489970HCID 17848997037.2%

Reaction Steps

To a solution of 6-cyclopentyl-6-[2-(2,4-dimethoxy-phenyl)-ethyl]-dihydro-pyran-2,4-dione (52 mg, 0.15 mmol) from Step 2 below, triethylamine (0.075 mL, 0.68 mmol) and (3-Methyl-isoxazol-5-yl)-acetic acid (0.027 g, 0.196 mmol) in CH2Cl2 (1.5 mL) were added DMAP (1 mg), and EDC (37 mg, 0.196 mmol). The reaction was stirred at room temperature for 18 hours, and then diluted with CH2Cl2. The organic was washed with water, and the layers were separated. The organic layer was dried under vacuum, and then purified by preparatory HPLC to give the desired compound (26.2 mg, 37% yield). 1H NMR (CDCl3) δ: 1.47-1.75 (m, 8H), 1.85-1.91 (m, 2H), 2.21 (s, 3H), 2.26-2.32 (m, 1H), 2.48-2.53 (m, 2H), 2.71 (d, J=18.09 Hz, 1H), 2.86 (d, J=18.09 Hz, 1H), 3.69 (s, 3H), 3.71 (s, 3H), 4.40-4.57 (m, 2H), 6.00 (s, 1H), 6.31-6.36 (m, 2H), 6.91 (d, J=7.91 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07473790B2
Source datasetuspto-grants-2009_01
ORD IDord-0a26c50352ba4c36a7fa96d0d139c407
Source noteuspto-grants-2009_01