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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 585574Generated: October 30, 2026

Hydrochloric Acid → HCID 21927819, compound

https://huagongshe.com/reaction/585574

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 21927828HCID 21927828—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 21927819HCID 2192781968%

Reaction Steps

NaOH (240 mg, 6 mmol) was dissolved in water (3 mL) and MeOH (10 mL). This solution was added to methyl 5-[(tert-butoxycarbonyl)(pyridin-2-yl)amino]pentanoate (200 mg, 0.64 mmol) dissolved in MeOH (15 mL). The mixture was stirred at room temperature overnight. The reaction mixture was neutralized with 2N HCl to pH 7. The solvent was removed under reduced pressure. A citric acid solution (10 mL) was added and the mixture was extracted with ethyl acetate, dried (MgSO4) and concentrated to give 128 mg (68%) of the product. 1H NMR (CDCl3) 8.36-8.34 (m, 1H), 7.65-7.52 (m, 2H), 7.02-6.98 (m, 1H), 3.97-3.91 (m, 2H), 2.38-2.32 (m, 2H), 1.69-1.62 (m, 4H), 1.50 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06933304B2
Source datasetuspto-grants-2005_08
ORD IDord-0f7d306e4acb4131bd7b3c67e16e6d7b
Source noteuspto-grants-2005_08