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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1292670Generated: October 30, 2026

1,2-Dichloroethane → 3-t-Butoxycarbonylamino-2-(RS)-[1-(4-cyanobenzyl)-1H-imidazol-5-yl]acetylamino-propionic acid methyl ester

https://huagongshe.com/reaction/1292670

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantTriethylamineHCID 8471—
Reactant3-hydroxy-1,2,3-benzotriazin-4(3H)-oneHCID 73026—
ReactantMethyl 2-amino-3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoateHCID 3442239—
Reactant1-(4-Cyanobenzyl)imidazole-5-acetic acidHCID 18433630—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product3-t-Butoxycarbonylamino-2-(RS)-[1-(4-cyanobenzyl)-1H-imidazol-5-yl]acetylamino-propionic acid methyl esterHCID 67571752—

Reaction Steps

To a solution of [1-(4-cyanobenzyl)-1H-imidazol-5-yl]acetic acid (607 mg, 1.64 mmol), 3-t-Butoxycarbonylamino-2(RS)-aminopropionic acid methyl ester (352 mg, 1.61 mmol), HOOBT (319 mg, 1.96 mmol), and triethylamine (0.54 ml, 3.87 mmol) in DMF (13 ml) at 0° C., was added EDC (2.67 g, 13.9 mmol). The reaction was stirred at room temperature for 18 hrs, diluted with EtOAc and the organic layer washed with sat. aq NaHCO3, brine, dried (Na2SO4). and the solvent evaporated in vacuo to afford the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05756528
Source datasetuspto-grants-1998_05
ORD IDord-10bf835f01084d48b6088941cd442011
Source noteuspto-grants-1998_05