Trifluoroacetic acid → 3-(5-Phenyl-1,3,4-oxadiazol-2-yl)-5-(1,2,3,6-tetrahydropyridin-4-yl)pyrazin-2-amine

HRID 1959367ノート

反応式

HRID 1959367 の反応式
C(OC([N:8](C(OC(C)(C)C)=O)[C:9]1[N:10]=[CH:11][C:12]([C:26]2[CH2:31][CH2:30][N:29](C(OC(C)(C)C)=O)[CH2:28][CH:27]=2)=[N:13][C:14]=1[C:15]1[O:16][C:17]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[N:18][N:19]=1)=O)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[C:20]1([C:17]2[O:16][C:15]([C:14]3[C:9]([NH2:8])=[N:10][CH:11]=[C:12]([C:26]4[CH2:31][CH2:30][NH:29][CH2:28][CH:27]=4)[N:13]=3)=[N:19][N:18]=2)[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 66744435tert-butyl 4-(5-(bis(tert-butoxycarbonyl)amino)-6-(5-phenyl-1,3,4-oxadiazol-2-yl)pyrazin-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate

生成物 1

HCID 461995573-(5-Phenyl-1,3,4-oxadiazol-2-yl)-5-(1,2,3,6-tetrahydropyridin-4-yl)pyrazin-2-amine収率 152.6%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

Tert-butyl 4-(5-(bis(tert-butoxycarbonyl)amino)-6-(5-phenyl-1,3,4-oxadiazol-2-yl)pyrazin-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (2.4 g, 3.867 mmol) was dissolved in DCM (40 mL) and treated with TFA (8 mL, 103.8 mmol). The reaction was allowed to stir overnight and then the solvent was removed in vacuo. The mixture was azeotroped with DCM (×3) and dried under vacuum to give the desired product as an orange solid (1.89 g, 100% Yield).

後処理

  1. customthe solvent was removed in vacuo
  2. customThe mixture was azeotroped with DCM (×3)
  3. customdried under vacuum

出典と根拠

ORDレコード
ord-8158450220be45eeb414ea12c9d9d929
出典データセット
uspto-grants-2013_04
特許番号
US08410112B2

反応ノート

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