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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1767341Generated: October 30, 2026

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

https://huagongshe.com/reaction/1767341

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)nicotino-nitrile hydrochloride(0.075 g, yield; 53%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07232909B2
Source datasetuspto-grants-2007_06
ORD IDord-0869c3c7c9a54f6f9574014ff32383a6
Source noteuspto-grants-2007_06