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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 32053Generated: October 26, 2026

1,2-Dichloroethane → HCID 68934380, compound

https://huagongshe.com/reaction/32053

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant3-(naphthalene-2-sulfonamido)-3-phenylpropionic AcidHCID 3632641—
Reactant4-Aminochroman-7-carbonitrileHCID 22349972—
SolventDichloromethaneHCID 6344—
ProductHCID 68934380HCID 68934380—

Reaction Conditions

Temperature23.5 °C

Reaction Steps

4-Amino-chroman-7-carbonitrile (Step E) (50 mg, 0.28 mmol), 3-(naphthalen-2-ylsulfonylamino)-3-phenyl-propionic acid (100 mg, 0.28 mmol), HOBt (42 mg, 0.31 mmol), and DIEA (72 mg, 0.56 mmol) were dissolved in CH2Cl2 (10 mL). EDC (52 mg, 0.34 mmol) was added and the reaction was stirred at 22-25° C. overnight until completed. The reaction solution was washed with dilute (˜5%) NaHCO3—H2O and H2O, and solution was dried over MgSO4, filtered and concentrated in vacuo to provide a residue which was purified by column chromatography (silica gel, 25% hexane in EtOAc) to provide the title compound as a white solid mixture of diastereomers (ca. 3:2 by 1H NMR after flash column chromotography).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07425631B2
Source datasetuspto-grants-2008_09
ORD IDord-4c2016b6bd7c494fbbab0ec845cf3b29
Source noteuspto-grants-2008_09