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Riluzole → 3-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester

HRID 410797
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HRID 410797 반응식
[CH2:1]([O:3][C:4](=[O:14])[C:5]1[CH:10]=[C:9]([NH2:11])[C:8]([NH:12][CH3:13])=[N:7][CH:6]=1)[CH3:2].[NH2:15][C:16]1[S:17][C:18]2[CH:24]=[C:23]([O:25][C:26]([F:29])([F:28])[F:27])[CH:22]=[CH:21][C:19]=2[N:20]=1.[C:30](N1C=CN=C1)(N1C=CN=C1)=S>C(Cl)CCl>[CH2:1]([O:3][C:4]([C:5]1[CH:10]=[C:9]2[N:11]=[C:13]([NH:15][C:16]3[S:17][C:18]4[CH:24]=[C:23]([O:25][C:26]([F:29])([F:27])[F:28])[CH:22]=[CH:21][C:19]=4[N:20]=3)[N:12]([CH3:30])[C:8]2=[N:7][CH:6]=1)=[O:14])[CH3:2]
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참가 물질

5

반응물 3

HCID 5070RiluzoleHCID 802641,1'-ThiocarbonyldiimidazoleHCID 673341255-Amino-6-methylamino-nicotinic acid ethyl ester

생성물 1

HCID 583977663-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester수율 40.8%

시약·촉매·용매 1

HCID 111,2-Dichloroethane용매

실험 절차

3-Methyl-2-(6-trifluoromethoxy-benzothiazol-2-ylamino)-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester (560 mg) was prepared by following General Procedure D starting from 5-amino-6-methylamino-nicotinic acid ethyl ester (723 mg), 2-amino-6-(trifluoromethoxy)benzothiazole (735 mg), 1,1′-thiocarbonyldiimidazole (802 mg), and EDC (969 mg). LC/MS: m/z 437.8. 1H NMR (DMSO-d6, 400 MHz): δ 12.44 (s, 1H), 7.94 (s, 1H), 7.89 (s, 1H), 7.74 (s, 1H), 7.52 (d, 1H), 7.37 (d, 1H), 4.33 (q, 2H), 3.65 (s, 3H), 1.36 (t, 3H).

출처 및 근거

ORD 기록
ord-8ab5e7ed019d4ef685b219e0480595c2
출처 데이터셋
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08759535B2

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