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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1611155Generated: November 1, 2026

Hydrochloric Acid → 2-Amino-6-(2-hydroxyphenyl)-4-(3-piperidinyl)nicotinonitrile hydrochloride

https://huagongshe.com/reaction/1611155

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 3-[2-amino-3-cyano-6-(2-hydroxyphenyl)-4-pyridinyl]-1-piperidinecarboxylateHCID 135550611—
Solvent1,4-DioxaneHCID 31275—
Product2-Amino-6-(2-hydroxyphenyl)-4-(3-piperidinyl)nicotinonitrile hydrochlorideHCID 13555062653%

Reaction Steps

To a stirred solution of tert-butyl 3-[2-amino-3-cyano-6-(2-hydroxyphenyl)-4-pyridinyl]-1-piperidinecarboxylate (0.170 g, 0.431 mmol) in dioxane (30 mL) was added 4N HCl in dioxane (3 mL). The mixture was stirred at room temperature for 12 hrs. The resulting precipitates were collected by filtration and the filtrate was washed with dioxane to give 2-amino-6-(2-hydroxyphenyl)-4-(3-piperidinyl)-nicotinonitrile hydrochloride(0.075 g, yield; 53%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06984649B1
Source datasetuspto-grants-2006_01
ORD IDord-cebb979c900c4f348cae2860adf371d3
Source noteuspto-grants-2006_01