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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 509441Generated: October 29, 2026

Ethyl Acetate → HCID 178508027, compound

https://huagongshe.com/reaction/509441

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 178523849HCID 178523849—
CatalystNickelHCID 935—
SolventMethanolHCID 887—
SolventHexaneHCID 8058—
ProductHCID 178508027HCID 178508027—

Reaction Steps

To a stirred solution of (S)—N-((3-fluoro-4-(trifluoromethoxy)phenyl)(3-fluoropyridin-2-yl)methyl)-4-hydroxy-5-nitropicolinamide (0.35 g, 0.0007 mol) in MeOH (10 mL) was added Raney Ni (0.3 g, Monarch), followed by hydrazine hydrate (2 mL, Aldrich) added in a drop-wise fashion at rt. The reaction mixture was stirred for 3 h. After completion of the reaction (monitored by TLC, 50% EtOAc in hexane), the reaction mixture was filtered through Celite® brand filter agent and concentrated providing a residue. The residue was triturated with Et2O, filtered dried under vacuum to give the title compound as a brown solid. 1H NMR (DMSO-d6) δ: 9.41 (d, J=7.5 Hz, 1H), 8.55 (d, J=4.2 Hz, 1H), 7.83-7.78 (m, 2H), 7.54-7.44 (m, 3H), 7.27 (d, J=9.9 Hz, 2H), 6.46 (d, J=6.9 Hz, 1H), 5.29 (s, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09096527B2
Source datasetuspto-grants-2015_08
ORD IDord-3b7c2a3d0d324a7a982075e1adc3518d
Source noteuspto-grants-2015_08