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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2183274Generated: October 30, 2026

Hydrochloric Acid → HCID 178516495, compound

https://huagongshe.com/reaction/2183274

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium MethoxideHCID 10942334—
Reactantethoxy[3-(4fluorophenyl)(1H-indazol-5-yl)]methanimine hydrochlorideHCID 22479739—
Reactant2-(4-Hydroxypiperidin-1-yl)acetohydrazideHCID 22480324—
SolventMethanolHCID 887—
ProductHCID 178516495HCID 1785164957.3%

Reaction Steps

A solution of ethoxy[3-(4-fluorophenyl)(1H-indazol-5-yl)]methanimine hydrochloride (521 mg, 1.63 mmol), N-amino-2-(4-hydroxypiperidyl)acetamide (850 mg, 4.9 mmol), and sodium methoxide (1.2 mL, 4.9 mmol) in methanol (˜8 mL) was taken up in a sealed tube and allowed to stir at room temperature for 25 minutes and then heated at 95° C. overnight. The reaction was acidified with hydrochloric acid to neutral pH. The product was extracted using ethyl acetate. The material was concentrated and purified by semipreprative HPLC. The purified material was taken up in ethyl acetate and washed with an aqueous solution of sodium bicarbonate to yield the title compound (47 mg, 7% yield). 1H NMR (DMSO-d6) δ 13.4 (br s, 1H), 8.6 (s, 1H), 8.0 (m, 3H), 7.6 (m, 1H), 7.4 (t, 2H), 3.6-3.8 (m, 2H), 3.4 (m, 2H), 3.2 (d, 1H), 2.4 (m, 2H), 2.0 (s, 4H)H, ES-MS (m/z) 393 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06897231B2
Source datasetuspto-grants-2005_05
ORD IDord-2375395bff2a46cfa5301787417fdb62
Source noteuspto-grants-2005_05