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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710853Generated: October 29, 2026

1,2,3,4-Tetrahydroisoquinoline → 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-(3,4-dihydroisoquinolin-2(1H)-yl)ethanone

https://huagongshe.com/reaction/710853

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2,3,4-TetrahydroisoquinolineHCID 7046—
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant2-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acidHCID 59161628—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
Product2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-(3,4-dihydroisoquinolin-2(1H)-yl)ethanoneHCID 5787640210.3%

Reaction Steps

A mixture of 2-(1, 2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acid (50 mg, 0.205 mmol), 1, 2, 3, 4 Tetrahydroisoquinoline (25 mg, 0.205 mmol), DCC (46 mg, 0.22 mmol), and DMAP (27 mg, 0.22 mmol) in dry DCM (2.0 mL) was stirred at room temperature for 3 h. The reaction mixture was filtered through Celite and concentrated using rotary evaporator afforded 7.9 mg of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-(3,4-dihydroisoquinolin-2(1H)-yl)ethanone as TFA Salt after purification by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, Gradient: 10% B to 80% B in 30 min, injection vol. 5 mL).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181240B2
Source datasetuspto-grants-2015_11
ORD IDord-45a9b15030054f2d919fdd7afe5440b3
Source noteuspto-grants-2015_11