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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1876931Generated: November 2, 2026

Hydrochloric Acid → HCID 24875129, compound

https://huagongshe.com/reaction/1876931

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-Amino-4-methylpyridineHCID 1533—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 76621204HCID 76621204—
Solvent1,1-DichloroethaneHCID 6365—
SolventEthyl AcetateHCID 8857—
ProductHCID 24875129HCID 2487512933.5%

Reaction Conditions

Temperature0 °C

Reaction Steps

99 mg of (18) were dissolved in/ml of dichloroethane and 37 mg (1.5 eq.) of 4-methylpyridin-2-ylamine and 240 mg (5 eq.) of NaHB(OAc)3 were added. The solution was stirred for 2.5 h. After pouring in ethyl acetate the organic layer was washed with saturated NaHCO3, brine and dried over Na2SO4. The crude product was redissolved in 6 ml of 1,4-dioxane and 1 ml of water. The solution was cooled to 0° C. and 3 eq. of LiOH*H2O were added. The solution was neutralized after 6 h with 1 M HCl and concentrated in vacuo. The product was purified by HPLC to give 39.1 mg of (19) as TFA salt.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08309735B2
Source datasetuspto-grants-2012_11
ORD IDord-69b2a49396424dfe8a49c3606f381aea
Source noteuspto-grants-2012_11