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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944016Generated: October 26, 2026

Diisopropylethylamine → Propyl [7-(4-benzyl-1H-1,2,3-triazol-1-yl)-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]acetate

https://huagongshe.com/reaction/1944016

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantBenzylacetyleneHCID 575753—
ReactantPropyl (7-azido-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl)acetateHCID 59487226—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventTetrahydrofuranHCID 8028—
ProductPropyl [7-(4-benzyl-1H-1,2,3-triazol-1-yl)-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]acetateHCID 86645391—

Reaction Steps

To a stirred solution of propyl (7-azido-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl)acetate (1 eq) (Synthesis described in WO07019675 A1) and prop-2-yn-1-ylbenzene (2 eq) in tetrahydrofuran (THF) (0.1M) at room temperature was added diisopropyl ethylamine (DIPEA) (5 eq) and CuI (5 eq). The reaction mixture was stirred overnight then quenched with NH4Cl sat and extracted with ethyl acetate (EA), washed with brine, dried over Na2SO4 and evaporated. Purification by combi-flash EA/Hex 0-100% afforded the desired compound which was used directly for next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394819B2
Source datasetuspto-grants-2013_03
ORD IDord-968e6740638a412e9dbe8b972029b298
Source noteuspto-grants-2013_03