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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 898269Generated: October 30, 2026

(3S)-3-ethyl-7-fluoro-4-[(4-hydroxyphenyl)sulfonyl]-1-methyl-3,4-dihydroquinoxalin-2(1H)-one → (3S)-1,3-Diethyl-7-fluoro-4-[(4-hydroxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1 h)-one

https://huagongshe.com/reaction/898269

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(3S)-3-ethyl-7-fluoro-4-[(4-hydroxyphenyl)sulfonyl]-1-methyl-3,4-dihydroquinoxalin-2(1H)-oneHCID 11639171—
Reactant(3S)-1,3-diethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-oneHCID 69223084—
Product(3S)-1,3-Diethyl-7-fluoro-4-[(4-hydroxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1 h)-oneHCID 11574408—

Reaction Steps

(3S)-1,3-Diethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-one was treated according to the procedure for the preparation of (3S)-3-ethyl-7-fluoro-4-[(4-hydroxyphenyl)sulfonyl]-1-methyl-3,4-dihydroquinoxalin-2(1H)-one (see Example 29) to yield (3S)-1,3-Diethyl-7-fluoro-4-[(4-hydroxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1 h)-one. MS (ESI) m/z 379 ([M+H]+); MS (ESI) m/z 377 ([M−H]−).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07351709B2
Source datasetuspto-grants-2008_04
ORD IDord-719a77d82fa84b52a8b403caa4a8d692
Source noteuspto-grants-2008_04