Acetaldehyde → N-ethyl-2-methoxy-5-methyl-7-(trifluoroacetyl)-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine

HRID 597938ノート

反応式

HRID 597938 の反応式
[CH3:1][O:2][C:3]1[C:4]([NH2:21])=[CH:5][C:6]2[CH:12]([CH3:13])[CH2:11][N:10]([C:14](=[O:19])[C:15]([F:18])([F:17])[F:16])[CH2:9][CH2:8][C:7]=2[N:20]=1.[CH:22](=O)[CH3:23]>CCO.[Pd]>[CH2:22]([NH:21][C:4]1[C:3]([O:2][CH3:1])=[N:20][C:7]2[CH2:8][CH2:9][N:10]([C:14](=[O:19])[C:15]([F:18])([F:16])[F:17])[CH2:11][CH:12]([CH3:13])[C:6]=2[CH:5]=1)[CH3:23]

参加物

5

反応物 2

HCID 177AcetaldehydeHCID 23654286HCID 23654286、化合物

生成物 1

HCID 23654373N-ethyl-2-methoxy-5-methyl-7-(trifluoroacetyl)-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine収率 56.3%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 702Ethanol溶媒

実験手順

A mixture of 2-methoxy-5-methyl-7-(trifluoroacetyl)-6,7,8,9-tetrahydro-5H -pyrido[2,3-d]azepin-3-amine (455 mg, 1.5 mmol), acetaldehyde (253 μl, 4.50 mmol) and 5% Pd/C (23.0 mg) in EtOH (18 ml) was subjected to H2 (50 psi) for 16 h at room temperature. The reaction mixture was filtered, concentrated under reduced pressure and purified by column chromatography to provide 280 mg (56%) of N-ethyl-2-methoxy-5-methyl-7-(trifluoroacetyl)-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine. 1H NMR (CDCl3) δ 6.47 (1H), 4.03 (0.5H), 3.88 (5H), 3.71 (0.5H), 3.43 (1H), 3.64 (3H), 2.98 (2H), 1.20 (6H) ppm. A mixture of of N-ethyl-2-methoxy-5-methyl-7-(trifluoroacetyl)-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine (331 mg, 1.00 mmol), K2CO3 (415 mg, 3.00 mmol), MeOH (13 ml) and H20 (2.7 ml) was stirred for 16h at room temperature. After removal of solvent under reduced pressure, the mixture was taken into aq. NaHCO3 and extracted with DCM. The organic layer was dried and concentrated in vacuo to give 204 mg (87%) of N-ethyl-2-methoxy-5-methyl-6,7,8,9-tetrahydro-5H-pyrido[2,3-d]azepin-3-amine. 1H-NMR (CDCl3) δ 6.48 (s, 1H), 3.87 (s, 3H), 3.80 (br s, 1H), 3.10-2.70 (m, 9H), 2.48 (br s, 1H), 1.26 (d, 3H), 1.24 (t, 3H) ppm.

後処理

  1. filtrationThe reaction mixture was filtered
  2. concentrationconcentrated under reduced pressure
  3. custompurified by column chromatography

出典と根拠

ORDレコード
ord-c551a14fbf6e4991b10ba142d28e0ae4
出典データセット
uspto-grants-2011_03
特許番号
US07897595B2

反応ノート

読み込み中…