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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2089032Generated: October 31, 2026

Sodium Hydroxide → HCID 87191657, compound

https://huagongshe.com/reaction/2089032

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 87191995HCID 87191995—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 87191657HCID 8719165770.6%

Reaction Conditions

Temperature90 °C

Reaction Steps

A solution of Example 180a (80.0 mg, 0.166 mmol) in dioxane (2 mL) was treated with 20% NaOH (0.20 mL). The reaction was heated at 90° C. for 2 hours. The solvent was evaporated. The residue was dissolved in water, neutralized with trifluoroacetic acid, treated with DMSO/MeOH, and purified by reverse-phase HPLC as described in Example 56 to give the title compound (40.2 mg) as trifluoroacetic acid salts. 1H NMR (500 MHz, CD3OD) ppm 1.30 (q, J=12.51 Hz, 3H), 1.39-1.56 (m, 2H), 1.69 (m, 1H), 1.75-1.86 (m, 2H), 2.04 (dd, J=12.51, 3.36 Hz, 2H), 3.72 (m, 1H), 6.76 (d, J=1.22 Hz, 1H), 6.90 (d, J=1.22 Hz, 1H), 7.84 (d, J=2.44 Hz, 1H), 7.91 (s, 1H), 7.97 (s, 1H). MS (DCI+) m/z 343.2 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08435980B2
Source datasetuspto-grants-2013_05
ORD IDord-6d7f81e4aaae47ce86b24137be2e3cae
Source noteuspto-grants-2013_05