6-(Piperidin-1-yl)pyrazine-2-carboxylic acid → HCID 178522719、化合物

HRID 414455ノート

反応式

HRID 414455 の反応式
[N:1]1([C:7]2[N:12]=[C:11]([C:13]([OH:15])=O)[CH:10]=[N:9][CH:8]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[NH2:16][C:17]1[NH:21][N:20]=[N:19][N:18]=1>O1CCCC1.C(N(CC)CC)C.C(Cl)(=O)C(C)(C)C>[N:1]1([C:7]2[N:12]=[C:11]([C:13]([NH:16][C:17]3[NH:21][N:20]=[N:19][N:18]=3)=[O:15])[CH:10]=[N:9][CH:8]=2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1

参加物

6

反応物 2

HCID 12825406-(Piperidin-1-yl)pyrazine-2-carboxylic acidHCID 178509299HCID 178509299、化合物

生成物 1

HCID 178522719HCID 178522719、化合物

試薬・触媒・溶媒 3

HCID 8028Tetrahydrofuran溶媒HCID 8471Triethylamine溶媒HCID 62493Pivaloyl chloride溶媒

実験手順

To a suspension fo 1.28 g of 6-(1-piperidinyl) pyrazine-2-carboxylic acid in 18 ml of tetrahydrofuran, 0.95 ml of triethylamine and 0.84 ml of pivaloyl chloride were added dropwise successively at 0 ° C. under stirring. After stirring for 1 hour at 0 ° C., 0.58 g of 5-amino-1H-tetrazole was added to the mixture, and the reaction mixture was stirred for 30 minutes at room temperature, and then refluxed for 12 hours. The reaction mixture was evaporated, and water was added to the residue. The precipitate was collected by filtration, and recrystalized from a mixture of dimethylsulfoxide and methanol affording 0.55 g of the desired compound as yellow columns. The obtained crystal was consistent with that of (a).

後処理

  1. additionwere added dropwise successively at 0 ° C.
  2. stirringAfter stirring for 1 hour at 0 ° C.
  3. stirringthe reaction mixture was stirred for 30 minutes at room temperature
  4. temperaturerefluxed for 12 hours
  5. customThe reaction mixture was evaporated
  6. additionwater was added to the residue
  7. filtrationThe precipitate was collected by filtration
  8. customrecrystalized from a mixture of dimethylsulfoxide and methanol affording 0.55 g of the desired compound as yellow columns

出典と根拠

ORDレコード
ord-ae69f077e70c41669af0d3b2dac91c0e
出典データセット
uspto-grants-1988_12
特許番号
US04792547

反応ノート

読み込み中…