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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1772110Generated: October 26, 2026

5-Bromo-3-(1-ethyl-1H-pyrazol-4-ylamino)-1-methylpyrazin-2(1H)-one → 5-tert-Butyl-2-(3-(6-(1-ethyl-1H-pyrazol-4-ylamino)-4-methyl-5-oxo-4,5-dihydropyrazin-2-yl)-2-(hydroxymethyl)phenyl)isoindolin-1-one

https://huagongshe.com/reaction/1772110

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-3-(1-ethyl-1H-pyrazol-4-ylamino)-1-methylpyrazin-2(1H)-oneHCID 58043741—
Reactant2-(5-tert-Butyl-1-oxoisoindolin-2-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl AcetateHCID 86697936—
Product5-tert-Butyl-2-(3-(6-(1-ethyl-1H-pyrazol-4-ylamino)-4-methyl-5-oxo-4,5-dihydropyrazin-2-yl)-2-(hydroxymethyl)phenyl)isoindolin-1-oneHCID 5692855048.2%

Reaction Steps

Using the same general procedure as Example 105, reaction of 111c (253 mg, 0.85 mmol) and 103f (473 mg, 1.02 mmol) afforded a 48% yield (210 mg) of 111 as an off-white solid: mp 138-140° C.; 1H NMR (500 MHz, DMSO-d6) δ 9.57 (s, 1H), 8.17 (s, 1H), 7.72 (m, 3H), 7.61 (m, 2H), 7.51 (t, 1H, J=7.6 Hz), 7.43 (m, 1H), 7.31 (s, 1H), 4.94 (s, 2H), 4.88 (t, 1H, J=5.0 Hz), 4.49 (d, 2H, J=5.0 Hz), 4.06 (q, 2H, J=7.1 Hz), 3.52 (s, 3H), 1.37 (s, 9H), 1.33 (t, 3H, J=7.2 Hz); MS (ESI+) m/z 513.2 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09249123B2
Source datasetuspto-grants-2016_02
ORD IDord-960f2a490ac84a10ba2baac34db36574
Source noteuspto-grants-2016_02