1,2-Dichloroethane → N'-((2R,3S)-2-(3-chloro-7-cyanobenzo[b]thiophen-4-ylamino)-3-hydroxybutanoyl)-4-cyanobenzohydrazide

HRID 2388580ノート

反応式

HRID 2388580 の反応式
[Cl:1][C:2]1[C:3]2[C:10]([NH:11][C@H:12]([C@@H:16]([OH:18])[CH3:17])[C:13]([OH:15])=O)=[CH:9][CH:8]=[C:7]([C:19]#[N:20])[C:4]=2[S:5][CH:6]=1.[C:21]([C:23]1[CH:32]=[CH:31][C:26]([C:27]([NH:29][NH2:30])=[O:28])=[CH:25][CH:24]=1)#[N:22].C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl.CCN(CC)CC>C1COCC1.CN(C=O)C>[Cl:1][C:2]1[C:3]2[C:10]([NH:11][C@H:12]([C@@H:16]([OH:18])[CH3:17])[C:13]([NH:30][NH:29][C:27](=[O:28])[C:26]3[CH:25]=[CH:24][C:23]([C:21]#[N:22])=[CH:32][CH:31]=3)=[O:15])=[CH:9][CH:8]=[C:7]([C:19]#[N:20])[C:4]=2[S:5][CH:6]=1

参加物

7

反応物 5

HCID 111,2-DichloroethaneHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 4567324-CyanobenzohydrazideHCID 68543453(2R,3S)-2-(3-chloro-7-cyanobenzo[b]thiophen-4-ylamino)-3-hydroxybutanoic acid

生成物 1

HCID 68546596N'-((2R,3S)-2-(3-chloro-7-cyanobenzo[b]thiophen-4-ylamino)-3-hydroxybutanoyl)-4-cyanobenzohydrazide収率 74%

試薬・触媒・溶媒 1

HCID 21974620tetrahydrofuran N,N-dimethylformamide溶媒

反応条件

温度
0 °C

実験手順

To a mixture of (2R,3S)-2-(3-chloro-7-cyanobenzo[b]thiophen-4-ylamino)-3-hydroxybutanoic acid (0.77 g, 2.48 mmol), 4-cyanobenzhydrazide (440 mg, 2.73 mmol), HOBt (369 mg, 2.73 mmol) in THF:DMF (1:1) (40 mL) was added EDC (712 mg, 3.71 mmol) and Et3N (0.53 mL, 3.80 mmol) at 0° C. The mixture was stirred at 0° C. for 30 min and then at room temperature overnight. The reaction was quenched by adding water and extracted with EtOAc (300 mL). The EtOAc extracts were washed with water, brine and dried over Na2SO4. Removal of the solvent and purification of the residue gave the title compound N′-((2R,3S)-2-(3-chloro-7-cyanobenzo[b]thiophen-4-ylamino)-3-hydroxybutanoyl)-4-cyanobenzohydrazide (0.83 g, 74%). 1H NMR (400 MHz, Acetone-d6, δ in ppm) 9.82 (b, 2H), 8.10 (d, J=8.2 Hz, 2H), 7.94 (d, J=8.2 Hz, 2H), 7.72 (d, J=8.4 Hz, 1H), 7.70 (s, 1H), 7.53 (d, J=6.8 Hz, 1H), 6.64 (d, J=8.4 Hz, 1H), 4.49 (m, 1H), 4.22 (dd, J=2.9, 6.8 Hz, 1H), 1.41 (d, J=6.4 Hz, 3H).

後処理

  1. customat room temperature
  2. customovernight
  3. customThe reaction was quenched
  4. additionby adding water
  5. extractionextracted with EtOAc (300 mL)
  6. washThe EtOAc extracts were washed with water, brine
  7. dry with materialdried over Na2SO4
  8. customRemoval of the solvent and purification of the residue

出典と根拠

ORDレコード
ord-f16bd73a8eba43488ba95ff757e1cc0c
出典データセット
uspto-grants-2012_09
特許番号
US08268872B2

反応ノート

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