Diisopropylethylamine → 4-([4-[5-(3,5-Dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(trifluoromethyl)phenyl]carbonyl)piperazine-2,6-dione

HRID 63847ノート

反応式

HRID 63847 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:27]([F:30])([F:29])[F:28])[O:13][N:12]=[C:11]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([OH:20])=O)=[C:16]([C:23]([F:26])([F:25])[F:24])[CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[NH:64]1[C:69](=[O:70])[CH2:68][NH:67][CH2:66][C:65]1=[O:71]>CN(C)C=O.[Cl-].[Na+].O>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:27]([F:30])([F:29])[F:28])[O:13][N:12]=[C:11]([C:14]3[CH:22]=[CH:21][C:17]([C:18]([N:67]4[CH2:68][C:69](=[O:70])[NH:64][C:65](=[O:71])[CH2:66]4)=[O:20])=[C:16]([C:23]([F:26])([F:24])[F:25])[CH:15]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1

参加物

7

反応物 4

HCID 81531DiisopropylethylamineHCID 338690Piperazine-2,6-dioneHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 595634844-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-trifluoromethyl benzoic acid

生成物 1

HCID 1180471824-([4-[5-(3,5-Dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(trifluoromethyl)phenyl]carbonyl)piperazine-2,6-dione

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 57417360Sodium chloride; water溶媒

反応条件

温度
20 °C

実験手順

Into a 50-mL round-bottom flask, was placed a solution of 4-[5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(trifluoromethyl)benzoic acid (300 mg, 0.64 mmol, 1.00 equiv) in N,N-dimethylformamide (2 mL), HATU (483 mg, 1.27 mmol, 2.00 equiv), DIEA (164 mg, 1.27 mmol, 2.00 equiv), piperazine-2,6-dione (145 mg, 1.27 mmol, 2.00 equiv). The resulting solution was stirred for 3 h at 20° C. The resulting solution was diluted with 50 mL of brine. The resulting solution was extracted with 3×50 mL of ethyl acetate and the organic layers combined. The mixture was dried over sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with PE/EA (10:1). This resulted in 330 mg (91%) of 4-([4-[5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(trifluoromethyl)phenyl]carbonyl)piperazine-2,6-dione as a white solid.

後処理

  1. customInto a 50-mL round-bottom flask, was placed
  2. extractionThe resulting solution was extracted with 3×50 mL of ethyl acetate
  3. dry with materialThe mixture was dried over sodium sulfate
  4. concentrationconcentrated under vacuum
  5. customThis resulted in 330 mg (91%) of 4-([4-[5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-(trifluoromethyl)phenyl]carbonyl)piperazine-2,6-dione as a white solid

出典と根拠

ORDレコード
ord-6973890583a146c9a0d258e83b96afff
出典データセット
uspto-grants-2016_09
特許番号
US09447084B2

反応ノート

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