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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 583648Generated: October 25, 2026

4-Methylmorpholine → 4-[2-(N-BOC-Amino)ethyloxy]benzoyl-2(S)-phenylsulfonylamino-beta-alanine tert-butyl ester

https://huagongshe.com/reaction/583648

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-MethylmorpholineHCID 7972—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
Reactant4-(2-((tert-Butoxycarbonyl)amino)ethoxy)benzoic acidHCID 2755997—
Reactant(S)-3-amino-2-benzenesulfonylamino-propionic acid tert-butyl ester hydrochlorideHCID 22853534—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
Product4-[2-(N-BOC-Amino)ethyloxy]benzoyl-2(S)-phenylsulfonylamino-beta-alanine tert-butyl esterHCID 10840664—

Reaction Steps

To a stirred solution of 1-4 (200 mg, 0.71 mmol), 2-1 (260 mg, 0.85 mmol), NMM (313 μL, 2.8 mmol), and CH3CN (4 mL) at ambient temperature was added BOP reagent (473 mg, 1.1 mmol). After 20 h the reaction mixture was diluted with EtOAc and then washed with H2O, sat. NaHCO3, 10% KHSO4 and brine, dried (MgSO4) and concentrated. Flash chromatography (silica, 40% EtOAc/hexanes) gave 2-3 as a white solid. Rf 0.19 (silica, 40% EtOAc/hexanes).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05929120
Source datasetuspto-grants-1999_07
ORD IDord-0add4dc143fe4a60a8bbfc141f06ff7b
Source noteuspto-grants-1999_07