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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2377084Generated: October 30, 2026

Hydrochloric Acid → HCID 11558501, compound

https://huagongshe.com/reaction/2377084

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydroxylamineHCID 787—
ReactantSodium HydroxideHCID 14798—
Reactantmethyl 1-(4-fluorobenzyl)-4-hydroxy-1H-pyrrolo[2,3-c]pyridine-5-carboxylateHCID 53237467—
SolventMethanolHCID 887—
ProductHCID 11558501HCID 1155850182%

Reaction Steps

To methyl 1-(4-fluorobenzyl)-4-hydroxy-1H-pyrrolo[2,3-c]pyridine-5-carboxylate (0.22 g, 0.73 mmol) in methanol (10 mL) were added hydroxylamine (2 mL, 30.3 mmol, 50% in water) and sodium hydroxide (2.0 mL. 2.0 mmol, 1 N aqueous solution). The resulting solution was stirred for 16 h at ambient temperature. After addition of 1N hydrochloric acid (2.0 mL. 2.0 mmol) the product precipitated out. It was collected by filtration, washed with water and ethyl acetate, and dried in vacuo to provide the title compound as a solid (0.18 g, 82% yield). 1H NMR (DMSO-d6) δ: 13.19 (s, 1H), 11.41 (s, 1H), 9.17 (s, 1H), 8.39 (s, 1H), 7.71 (d, 1H, 7.34 (t, 2H, 7.16 (t, 2H) 6.68 (d, 1H), 5.54 (s, 2H). LCMS (APCI, M+H+): 302.1. HRMS calcd for C15H12FN3O3 (M+H) 302.0936, found 302.0935. HPLC: 100% purity.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07468375B2
Source datasetuspto-grants-2008_12
ORD IDord-0a64a4b8d9cf42d183cba255bee79275
Source noteuspto-grants-2008_12