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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 515719Generated: October 26, 2026

Cesium carbonate → Ethyl 2-(2-(3,4-Diethoxybenzyloxy)-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetate

https://huagongshe.com/reaction/515719

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant4-Chloromethyl-1,2-diethoxy-benzeneHCID 2434831—
ReactantEthyl 2-(2-hydroxy-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetateHCID 67249257—
SolventDimethylacetamideHCID 31374—
ProductEthyl 2-(2-(3,4-Diethoxybenzyloxy)-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetateHCID 6725073862.3%

Reaction Conditions

Temperature60 °C

Reaction Steps

Ethyl 2-(2-hydroxy-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetate (0.100 g, 0.366 mmol), cesium carbonate (0.179 g, 0.549 mmol) and 4-(chloromethyl)-1,2-diethoxybenzene (0.118 g, 0.549 mmol) were taken up in DMA (2 mL) and heated to 60° C. for 16 h in a 20 mL sealed scintillation vial. The reaction was cooled down to room temperature and filtered by vacuum filtration through a glass fiber paper. The solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (0.103 g) as an off-white solid. LCMS m/z=452.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09108969B2
Source datasetuspto-grants-2015_08
ORD IDord-07604347832640e4b3e153d96953c959
Source noteuspto-grants-2015_08