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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 898224Generated: October 31, 2026

(3S)-3-ethyl-6-fluoro-4-(4-methoxybenzoyl)-3,4-dihydroquinoxalin-2(1H)-one → (3S)-3-ethyl-6-fluoro-4-(4-methoxybenzoyl)-1-methyl-3,4-dihydroquinoxalin-2(1H)-one

https://huagongshe.com/reaction/898224

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(3S)-3-ethyl-6-fluoro-4-(4-methoxybenzoyl)-3,4-dihydroquinoxalin-2(1H)-oneHCID 69223582—
Reactant(3R)-3-ethyl-7-fluoro-4-(4-methoxybenzoyl)-1-methyl-3,4-dihydroquinoxalin-2(1H)-oneHCID 69223654—
Product(3S)-3-ethyl-6-fluoro-4-(4-methoxybenzoyl)-1-methyl-3,4-dihydroquinoxalin-2(1H)-oneHCID 6922276083%

Reaction Steps

(3S)-3-Ethyl-6-fluoro-4-(4-methoxybenzoyl)-3,4-dihydroquinoxalin-2(1H)-one (see Example 6) was treated according to the procedure for the preparation of (3R)-3-ethyl-7-fluoro-4-(4-methoxybenzoyl)-1-methyl-3,4-dihydroquinoxalin-2(1H)-one (see Example 1) to yield (3S)-3-ethyl-6-fluoro-4-(4-methoxybenzoyl)-1-methyl-3,4-dihydroquinoxalin-2(1H)-one (83%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07351709B2
Source datasetuspto-grants-2008_04
ORD IDord-7c2b7925d8b342d294f974d9285fa29a
Source noteuspto-grants-2008_04