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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58108Generated: October 30, 2026

1,2-Dichloroethane → HCID 89782824, compound

https://huagongshe.com/reaction/58108

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantEthanolamineHCID 700—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant6-methyl-5-(6-(trifluoromethyl)-1H-indazol-4-yl)picolinic acidHCID 89783355—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 89782824HCID 8978282436.3%

Reaction Steps

To 6-methyl-5-(6-(trifluoromethyl)-1H-indazol-4-yl)picolinic acid (1.6 g, 4.98 mmol) in DMF (20 mL) were added HOBt (0.942 g, 6.97 mmol), EDC (1.432 g, 7.47 mmol), 2-aminoethanol (0.913 g, 14.94 mmol), followed by N-ethyl-N-isopropylpropan-2-amine (4.34 mL, 24.90 mmol). The reaction mixture was stirred for 16 hours at room temperature, was subsequently diluted with EtOAc and was washed with brine. Volatiles were evaporated from the organic phase and the residue was purified by CombiFlash® chromatography, eluting with a gradient of 0-20% MeOH in DCM. The product-containing fractions were combined and concentrated in vacuo to give the title compound as a white solid (0.658 g, 36.3%). 1H NMR (400 MHz, DMSO-d6) δ ppm 2.43 (s, 3H), 3.44 (q, J=5.98 Hz, 2H), 3.57 (t, J=5.94 Hz, 2H), 7.38-7.44 (m, 1H), 7.90-8.07 (m, 4H), 8.70 (t, J=5.81 Hz, 1H); ESI-MS m/z [M+H]+ calc'd for C17H15F3N4O2, 365.1. found 365.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434743B2
Source datasetuspto-grants-2016_09
ORD IDord-d8e84ccb75fa4262a6068ee19592e58f
Source noteuspto-grants-2016_09