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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1670635Generated: November 1, 2026

Hydrochloric Acid → HCID 131729090, compound

https://huagongshe.com/reaction/1670635

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(3S,4S)-4-(4-Bromo-2-nitro-phenylamino)-3-hydroxy-piperidine-1-carboxylic acid tert-butyl esterHCID 67335296—
SolventDichloromethaneHCID 6344—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 131729090HCID 13172909080%

Reaction Steps

Add 4 M hydrogen chloride in dioxane (90 mL) slowly to a solution of (3S,4S)-4-(4-bromo-2-nitro-phenylamino)-3-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (0.035 mol, 14.6 g) in dry dichloromethane (50 mL) at room temperature and stir for 16 h. Filter the precipitate and dry under vacuum to obtain the title compound (9.84 g, 80%) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07994164B2
Source datasetuspto-grants-2011_08
ORD IDord-d8dc6c10e3a14072823fd7cb1fa5f6b2
Source noteuspto-grants-2011_08