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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1879356Generated: October 31, 2026

1-Hydroxybenzotriazole → [3-(2-Amino-3-methoxy-phenylcarbamoyl)-propyl]methyl-carbamic acid benzyl ester

https://huagongshe.com/reaction/1879356

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant3-Methoxybenzene-1,2-diamineHCID 184268—
ReactantSodium BicarbonateHCID 516892—
Reactant4-(((Benzyloxy)carbonyl)(methyl)amino)butanoic acidHCID 19028304—
Solvent1,2-DichloroethaneHCID 11—
SolventTetrahydrofuranHCID 8028—
Product[3-(2-Amino-3-methoxy-phenylcarbamoyl)-propyl]methyl-carbamic acid benzyl esterHCID 67380324—

Reaction Steps

To a solution of 1.40 g 4-(benzyloxycarbonyl-methyl-amino)-butyric acid (obtained from 4-(methylamino)butyric acid and benzylchloroformate) in 25 mL THF were added 2.9 mL of DIPEA, 0.97 g of HOBt and 1.38 g EDC. After stirring for 5 min 0.80 g of 3-methoxy-benzene-1,2-diamine were added and the mixture was stirred for 3 h at rt. Sat. aq. NaHCO3 solution was added, the phases were separated and the organic phase was washed with brine. The combined organic phases were dried over MgSO4, and concentrated in vacuo.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314253B2
Source datasetuspto-grants-2012_11
ORD IDord-86ec1af97acc4b8b9e965c4e7e863553
Source noteuspto-grants-2012_11