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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2218267Generated: October 31, 2026

Hydrochloric Acid → 2-[6-Amino-4-[4-(ethylamino)-3-hydroxyphenyl]-5-(hydroxymethyl)-2-pyridinyl]-3-(cycloproylmethoxy)phenol

https://huagongshe.com/reaction/2218267

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5-[2-Amino-6-{2-(cyclopropylmethoxy)-6-[(4-methoxybenzyl)oxy]phenyl}-3-(hydroxymethyl)-4-pyridinyl]-2-(ethylamino)phenolHCID 69144951—
SolventDiethyl EtherHCID 3283—
Solvent1,4-DioxaneHCID 31275—
Product2-[6-Amino-4-[4-(ethylamino)-3-hydroxyphenyl]-5-(hydroxymethyl)-2-pyridinyl]-3-(cycloproylmethoxy)phenolHCID 135530446—

Reaction Steps

To a solution of 5-[2-amino-6-{2-(cyclopropylmethoxy)-6-[(4-methoxybenzyl)oxy]phenyl}-3-(hydroxymethyl)-4-pyridinyl]-2-(ethylamino)phenol (0.013 g, 0.023 mmol) in 1,4-dioxane (0.5 mL) was added a solution of HCl in 1,4-dioxane (4N, 1.0 mL). After being stirred overnight, the mixture was diluted with diethyl ether. The resulting precipitate was collected by filtration under argon atmosphere, washed with Et2O, and dried under reduced pressure to give 2-[6-amino-4-[4-(ethylamino)-3-hydroxyphenyl]-5-(hydroxymethyl)-2-pyridinyl]-3-(cycloproylmethoxy)phenol. (0.008 g, 76%); LC-MS (m/z=422 M+1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07410986B2
Source datasetuspto-grants-2008_08
ORD IDord-f3518b89d4ac42228c6244ad731d5802
Source noteuspto-grants-2008_08