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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 278649Generated: October 26, 2026

Dichloromethane → [4-(5-(Cyclopropyl-amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalene-2-yl-ethynyl)-2-fluoro-phenyl] acetic acid ethyl ester

https://huagongshe.com/reaction/278649

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantCyclopropylamineHCID 69828—
ReactantSodium cyanoborohydrideHCID 5003444—
Reactant[2-Fluoro-4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydronaphthalene-2-ylethynyl)phenyl]acetic acid ethyl esterHCID 69548870—
SolventAcetic AcidHCID 176—
SolventAcetonitrileHCID 6342—
SolventHexaneHCID 8058—
SolventEthyl AcetateHCID 8857—
Product[4-(5-(Cyclopropyl-amino)-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalene-2-yl-ethynyl)-2-fluoro-phenyl] acetic acid ethyl esterHCID 69548141—

Reaction Steps

Following general procedure G and using [2-fluoro-4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalene-2-ylethynyl) phenyl]acetic acid ethyl ester (Compound 14, 0.258 g, 0.68 mmol), dichloromethane (4 mL), acetonitrile(2 mL), cyclopropyl amine(1 mL, 14.45 mmol), acetic acid (1 mL)and sodium cyanoborohydride (0.266 g, 4.23 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 16-20-25% ethyl acetate in hexane as the eluent, the title compound was obtained as a pale yellow oil (0.21 g, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06359135B1
Source datasetuspto-grants-2002_03
ORD IDord-4520212d4505447d9193d13a60c3b107
Source noteuspto-grants-2002_03