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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2037420Generated: November 3, 2026

1-Hydroxybenzotriazole → HCID 25182418, compound

https://huagongshe.com/reaction/2037420

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 25182555HCID 25182555—
SolventDichloromethaneHCID 6344—
ProductHCID 25182418HCID 251824186%

Reaction Steps

A solution of 2-(3-(2′,4′-difluorobiphenyl-3-yl)-2-oxo-6-phenyl-1,3-oxazinan-6-yl)acetic acid (30 mg, 0.072 mmol), HOBt (18 mg, 0.144 mmol), EDCl (30 mg, 0.144 mmol) and DIEA (0.2 ML) in anhydrous CH2Cl2 (3 mL) was stirred at 0° C. under NH3. Then the solution was stirred at rt overnight. Solvent was removed in vacuo, the residue was purified by HPLC to get 2-(3-(2′,4′-difluorobiphenyl-3-yl)-2-oxo-6-phenyl-1,3-oxazinan-6-yl)acetamide (1.68 mg, 6%). 1H-NMR (400 MHz, CDCl3): δ=2.58 (m, 2H), 2.80-3.00 (m, 2H), 3.27 (m, 1H), 3.50 (m, 1H), 6.00 (s, 1H), 6.36 (s, 1H), 6.78-6.90 (m, 2H), 7.05 (m, 1H), 7.23-7.55 (m, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575156B2
Source datasetuspto-grants-2013_11
ORD IDord-5c4180b00f41475983629c8a4ba636e1
Source noteuspto-grants-2013_11