1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → tert-butyl 1-[[(2S)-1-[(Z)-1-aminoethylideneamino]oxy-3,3-dimethyl-1-oxobutan-2-yl]carbamoyl]-3-phenyl-6,8-dihydro-5H-imidazo[1,5-a]pyrazine-7-carboxylate

HRID 535939ノート

反応式

HRID 535939 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]2[C:14]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)=[N:15][C:16]([C:17]([NH:19][C@@H:20]([C:24]([CH3:27])([CH3:26])[CH3:25])[C:21]([OH:23])=[O:22])=[O:18])=[C:10]2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.O/[N:56]=[C:57](\[NH2:59])/[CH3:58]>CN(C=O)C.O>[NH2:59]/[C:57](=[N:56]\[O:22][C:21](=[O:23])[C@@H:20]([NH:19][C:17]([C:16]1[N:15]=[C:14]([C:28]2[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=2)[N:11]2[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH2:9][C:10]=12)=[O:18])[C:24]([CH3:26])([CH3:27])[CH3:25])/[CH3:58]

参加物

7

反応物 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 5487681(E)-N'-HydroxyacetimidamideHCID 57635146(S)-2-(7-(tert-butoxycarbonyl)-3-phenyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine-1-carboxamido)-3,3-dimethylbutanoic acid

生成物 1

HCID 57635411tert-butyl 1-[[(2S)-1-[(Z)-1-aminoethylideneamino]oxy-3,3-dimethyl-1-oxobutan-2-yl]carbamoyl]-3-phenyl-6,8-dihydro-5H-imidazo[1,5-a]pyrazine-7-carboxylate

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

Intermediate 22B (0.25 g, 0.55 mmol) was dissolved in DMF and EDCI (0.17 g, 0.87 mmol) was added, followed by HOBt (0.12 g, 0.87 mmol). The resulting mixture was stirred for 30 min and (Z)-N′-hydroxyacetimidamide (0.06 g, 0.82 mmol) was added and the mixture was stirred overnight. The reaction mixture was diluted with water and extracted with EtOAc. The organic layer was washed successively with water, 2N Na2CO3 solution and brine, dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was used in the next step without purification. LCMS (+ESI) m/z 1025.2 [2M+H]+.

後処理

  1. stirringthe mixture was stirred overnight
  2. extractionextracted with EtOAc
  3. washThe organic layer was washed successively with water, 2N Na2CO3 solution and brine
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was used in the next step without purification

出典と根拠

ORDレコード
ord-82213b7f38a14e5f9710cb65503a483a
出典データセット
uspto-grants-2014_10
特許番号
US08859538B2

反応ノート

読み込み中…