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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1824122Generated: November 3, 2026

N-(3,4-dihydro-2H-chromen-4-yl)-3,6-diethylpyrazin-2-amine → 5-bromo-N-(3,4-dihydro-2H-chromen-4-yl)-3,6-diethylpyrazin-2-amine

https://huagongshe.com/reaction/1824122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-(3,4-dihydro-2H-chromen-4-yl)-3,6-diethylpyrazin-2-amineHCID 22147228—
Reactant(1R,2S)-1-[(5-bromo-3,6-diethylpyrazin-2-yl)amino]-2,3-dihydro-1H-inden-2-olHCID 58583245—
Product5-bromo-N-(3,4-dihydro-2H-chromen-4-yl)-3,6-diethylpyrazin-2-amineHCID 22147267—

Reaction Steps

Following the procedure for the preparation of (1R,2S)-1-[(5-bromo-3,6-diethylpyrazin-2-yl)amino]-2,3-dihydro-1H-inden-2-ol but substituting N-(3,4-dihydro-2H-chromen-4-yl)-3,6-diethylpyrazin-2-amine and making non-critical variations provided the title compound as a oil: 1H NMR (300 MHz, CDCl3) δ) 7.28–7.21, 6.96–6.89, 5.26, 4.54, 4.29–4.22, 2.84, 2.57, 2.22, 1.32–1.24; HRMS (FAB) calcd for C17H20BrN3O+H 362.0868, found 362.0861.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07041672B2
Source datasetuspto-grants-2006_05
ORD IDord-da2d46115f3c4074ae51723d61e148ce
Source noteuspto-grants-2006_05