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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2279273Generated: October 31, 2026

Hydroxyamine hydrochloride → HCID 123864132, compound

https://huagongshe.com/reaction/2279273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantPotassium AcetateHCID 517044—
ReactantHCID 118081840HCID 118081840—
SolventMethanolHCID 887—
ProductHCID 123864132HCID 12386413278%

Reaction Steps

6-[4-methyl-2-(3-pyridyl)thiazol-5-yl]-2,3-dihydropyrano[3,2-b]pyridin-4-one (100 mg, 0.31 mmol), compound H2N—OH.HCl (51 mg, 0.62 mmol) and KOAc (61 mg, 0.62 mmol) were suspended in methanol (3 mL) under N2. The reaction mixture was refluxed for 18 hours and purified by chromatography on silica (Ethyl acetate) to get the pure compound as yellow solid (84 mg, 78%). 1H NMR (400 Mz, CDCl3): 2.68 (s, 3H); 2.97 (t, 2H); 4.00 (s, 3H); 4.28 (t, 2H); 7.55-7.46 (m, 2H); 7.72-7.69 (m, 1H); 8.231-8.29 (m, 2H); 8.66-8.65 (m, 1H); 9.13 (s, 1H). Mpt 148-149° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133218B2
Source datasetuspto-grants-2015_09
ORD IDord-25c0ced5c743476ca08f7d5749791fc0
Source noteuspto-grants-2015_09