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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 717902Generated: October 30, 2026

1,2-Dichloroethane → HCID 89709467, compound

https://huagongshe.com/reaction/717902

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantCyclopropylamineHCID 69828—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 89709503HCID 89709503—
SolventDichloromethaneHCID 6344—
ProductHCID 89709467HCID 8970946719.8%

Reaction Steps

To a stirred solution of (4aSR*,5SR*,10bSR*)-5-cyclohexyl-3,4,4a,5,6,10b-hexahydro-2H-pyrano[3,2-c]quinoline-9-carboxylic acid (50 mg, 0.16 mmol, 1 equiv.) in dry CH2Cl2 (1.6 mL) under argon atmosphere at 0° C. was added cyclopropanamine (12.1 μL, 0.17 mmol, 1.1 equiv.) followed by DIPEA (41 μL, 0.24 mmol, 1.5 equiv.) and EDC (33.5 mg, 0.17 mmol, 1.1 equiv). The reaction mixture was allowed to reach r.t. and stirred overnight. The solvent was removed under reduced pressure and the residue directly purified by Combiflash chromatography (SiO2, c-Hexane/AcOEt) to afford (4aS,5S,10bS)-5-cyclohexyl-3,4,4a,5,6,10b-hexahydro-2H-pyrano[3,2-c]quinoline-9-carboxylic acid (10 mg, 17%). The compound was prepared as hydrochloride salt following the method described in example 1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09193738B2
Source datasetuspto-grants-2015_11
ORD IDord-cb93828469484036bb22be9e5a54051a
Source noteuspto-grants-2015_11