Iodoethane → (3S)-1,3-diethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-one

反応式

[CH2:1]([C@@H:3]1[N:12]([S:13]([C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][CH:17]=2)(=[O:15])=[O:14])[C:11]2[C:6](=[CH:7][C:8]([F:24])=[CH:9][CH:10]=2)[NH:5][C:4]1=[O:25])[CH3:2].I[CH2:27][CH3:28].C([C@H]1N(C(=O)C2C=CC(OC)=CC=2)C2C(=CC(F)=CC=2)N(C)C1=O)C>>[CH2:27]([N:5]1[C:6]2[C:11](=[CH:10][CH:9]=[C:8]([F:24])[CH:7]=2)[N:12]([S:13]([C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][CH:17]=2)(=[O:14])=[O:15])[C@@H:3]([CH2:1][CH3:2])[C:4]1=[O:25])[CH3:28]

参加物

反応物 3

HCID 6340Iodoethane

HCID 69223654(3R)-3-ethyl-7-fluoro-4-(4-methoxybenzoyl)-1-methyl-3,4-dihydroquinoxalin-2(1H)-one

HCID 69223907(3S)-3-ethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-one

生成物 1

HCID 69223084(3S)-1,3-diethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-one

実験手順

(3S)-3-Ethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-one (see Example 29) was treated with iodoethane 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)-1,3-diethyl-7-fluoro-4-[(4-methoxyphenyl)sulfonyl]-3,4-dihydroquinoxalin-2(1H)-one. MS (ESI) m/z 393 ([M+H]+); Anal. Calcd for C19H21FN2O4S: C, 58.15; H, 5.39; N, 7.14. Found: C, 58.36; H, 5.56; N, 7.05.