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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1928701Generated: October 31, 2026

Hydrochloric Acid → Hexanamide, 3-amino-N-cyclopropyl-2-hydroxy-, hydrochloride (1:1), (2S,3S)-

https://huagongshe.com/reaction/1928701

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl ((2S,3S)-1-(cyclopropylamino)-2-hydroxy-1-oxohexan-3-yl)carbamateHCID 68950941—
Solvent1,4-DioxaneHCID 31275—
ProductHexanamide, 3-amino-N-cyclopropyl-2-hydroxy-, hydrochloride (1:1), (2S,3S)-HCID 25067786—

Reaction Steps

To a 4 M 1,4-dioxane solution (60 mL) of hydrogen chloride, (2S,3S)—N-cyclopropyl-3-(t-butoxycarbonyl)amino-2-hydroxyhexanoic acid amide (4.5 g) was added. A solid of the product aggregated to form a lump after about 5 minutes, and the flowability of the reaction liquid worsened. After the disappearance of the starting material, the solvent was evaporated away with an evaporator to obtain a concentrated product of (2S,3S)—N-cyclopropyl-3-amino-2-hydroxyhexanoic acid amide hydrochloride (chemical purity: 89.8 area %).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08183413B2
Source datasetuspto-grants-2012_05
ORD IDord-dd46bd71fb4b4373bd597a1fc00a832f
Source noteuspto-grants-2012_05