1,2-Dichloroethane → N-[(1R)-1-(5-bromopyridin-2-yl)ethyl]-2-[4-(5-methylisoxazol-4-yl)phenyl]acetamide

HRID 254692

反応式

HRID 254692 の反応式
[CH3:1][C:2]1[O:6][N:5]=[CH:4][C:3]=1[C:7]1[CH:12]=[CH:11][C:10]([CH2:13][C:14]([OH:16])=O)=[CH:9][CH:8]=1.Cl.[Br:18][C:19]1[CH:20]=[CH:21][C:22]([C@H:25]([NH2:27])[CH3:26])=[N:23][CH:24]=1.C1C=NC2N(O)N=NC=2C=1.C(Cl)CCl.CCN(C(C)C)C(C)C>CN(C=O)C.C(Cl)Cl>[Br:18][C:19]1[CH:20]=[CH:21][C:22]([C@H:25]([NH:27][C:14](=[O:16])[CH2:13][C:10]2[CH:9]=[CH:8][C:7]([C:3]3[CH:4]=[N:5][O:6][C:2]=3[CH3:1])=[CH:12][CH:11]=2)[CH3:26])=[N:23][CH:24]=1

参加物

8

反応物 5

HCID 111,2-DichloroethaneHCID 81531DiisopropylethylamineHCID 181649HOAtHCID 50999177(R)-1-(5-Bromopyridin-2-yl)ethanamine hydrochlorideHCID 66893040[4-(5-Methylisoxazol-4-yl)phenyl]acetic acid

生成物 1

HCID 24765670N-[(1R)-1-(5-bromopyridin-2-yl)ethyl]-2-[4-(5-methylisoxazol-4-yl)phenyl]acetamide

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 6344Dichloromethane溶媒

実験手順

To a solution of 0.20 g (0.921 mmol) [4-(5-methylisoxazol-4-yl)phenyl]acetic acid in 2.00 ml DMF was added 0.22 g (0.92 mmol) (1R)-1-(5-bromopyridin-2-yl)ethanamine hydrochloride salt, 0.16 g (1.20 mmol) HOAT, 0.23 g (1.20 mmol) EDC, and 0.48 mL (2.76 mmol) DIEA. After 1.5 h at room temperature, the reaction mixture was diluted with CH2Cl2, washed three times with water, and washed with brine. The organic layer was dried over NaSO4, filtered and concentrated in vacuo. Purification by flash chromatography (1×14 cm silica gel, linear gradient 38-85% EtOAc:hexane) afforded N-[(1R)-1-(5-bromopyridin-2-yl)ethyl]-2-[4-(5-methylisoxazol-4-yl)phenyl]acetamide. 1H NMR (CDCl3, 400 MHz) 8.53 (d, 1H, J=2.11 Hz); 8.35 (s, 1H); 7.76 (dd, 1H, J=2.38 Hz, 8.33 Hz); 7.35 (s, 4H); 7.13 (d, 1H, J=8.24 Hz); 6.73 (br d, 1H, J=6.32 Hz); 5.11 (m, 1H); 3.61 (s, 2H); 2.58 (s, 3H); 1.42 (d, 3H, J=6.87). Electrospray mass spec M+H=402.0.

後処理

  1. washwashed three times with water
  2. washwashed with brine
  3. dry with materialThe organic layer was dried over NaSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customPurification by flash chromatography (1×14 cm silica gel, linear gradient 38-85% EtOAc:hexane)

出典と根拠

ORDレコード
ord-63d1d1a0a7184384a0bb1e618689913d
出典データセット
uspto-grants-2011_01
特許番号
US07875636B2

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