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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 389760Generated: October 30, 2026

Ammonia → HCID 59587587, compound

https://huagongshe.com/reaction/389760

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant1,4-DioxaneHCID 31275—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant1-Hydroxybenzotriazole hydrateHCID 2796029—
ReactantHCID 59587504HCID 59587504—
SolventDimethylformamideHCID 6228—
ProductHCID 59587587HCID 5958758738.5%

Reaction Steps

To a stirred solution of 5-(4-methoxyphenyl)-2-(phenylamino)oxazole-4-carboxylic acid (0.012 g, 0.039 mmol), 1-hydroxybenzotriazole hydrate (0.009 g, 0.059 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.011 g, 0.057 mmol) in DMF (5 mL) was added a 0.5M ammonia in dioxane solution (0.116 mL, 0.058 mmol) and the resulting mixture stirred at room temperature overnight. The solvent was removed in vacuo and the residue purified by preparative HPLC to afford 5-(4-methoxyphenyl)-2-(phenylamino)oxazole-4-carboxamide (0.0045 g, 0.015 mmol, 38%). 1H NMR (DMSO) δ 3.82 (3H, s), 6.98 (1H, t), 7.04 (2H, d), 7.33 (2H, t), 7.51 (1H, br, s), 7.60 (1H, br, s), 7.73 (2H, d), 8.16 (2H, d), 10.40 (1H, s). LCMS (2) Rt: 2.67 min; m/z (ES+) 310.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08378095B2
Source datasetuspto-grants-2013_02
ORD IDord-316283b4100049c199afaf018d304b71
Source noteuspto-grants-2013_02