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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1832192Generated: October 31, 2026

Ammonia → HCID 20722978, compound

https://huagongshe.com/reaction/1832192

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantTriphenylphosphineHCID 11776—
Reactant2,5-DifluorophenolHCID 94952—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
ReactantN-(3-(1-[(3R)-3-hydroxy-3-phenylpropyl]-4-piperidinyl}phenyl)-2-methylpropanamideHCID 10199805—
SolventChloroformHCID 6212—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20722978HCID 2072297840.1%

Reaction Steps

A mixture of N-(3-{1-[(3R)-3-hydroxy-3-phenylpropyl]-4-piperidinyl}phenyl)-2-methylpropanamide (5.20 mg, 0.0137 mmol), 2,5-difluorophenol (100 mg), triphenylphosphine (30.0 mg, 0.115 mmol) and diethyl azodicarboxylate (7.42 mg, 0.0426 mmol) in THF (0.50 mL) was stirred at room temperature for 3 days. Chromatography using silica preparative TLC plates [2.5% of NH3 (2.0 M in methanol) in CHCl3] gave the desired product (2.70 mg, 40.1% yield) as a thick oil: 1H NMR (400 MHz, CDCl3) δ 7.46 (s, 1H), 7.40–7.30 (m, 4H), 7.20 (m, 2H), 7.17 (s, 1H), 6.97 (m, 2H), 6.58 (m, 1H), 6.51 (m, 1H), 5.27 (apparent dd, 1H, J=5.1, 8.2 Hz), 3.13 (apparent d, J=9.7 Hz, 2H), 2.64 (m, 2H), 2.51 (m, 2H), 2.34 (apparent sept, partially hidden, J=7.1 Hz, 1H), 2.17 (m, 3H), 1.90–1.80 (m, 4H), 1.25 (d, 6H, J=7.1 Hz); ESMS m/e: 493.1, (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07067534B1
Source datasetuspto-grants-2006_06
ORD IDord-656c7cddf8864bfc98eae9ee0a86cde7
Source noteuspto-grants-2006_06