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Formaldehyde → 4-[1-Phenyl-1-(5-(1-methylazetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester

HRID 1394444
ノート
印刷プレビュー

反応式

HRID 1394444 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11](=[C:14]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:15]2[O:16][C:17]([CH:20]3[CH2:23][NH:22][CH2:21]3)=[N:18][N:19]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C=O.[BH3-][C:33]#N.[Na+].O>CO>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][C:11](=[C:14]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:15]2[O:16][C:17]([CH:20]3[CH2:21][N:22]([CH3:33])[CH2:23]3)=[N:18][N:19]=2)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 712FormaldehydeHCID 962WaterHCID 5003444Sodium cyanoborohydrideHCID 670464414-[1-Phenyl-1-(5-(azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester

生成物 1

HCID 670464244-[1-Phenyl-1-(5-(1-methylazetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester収率 39.5%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒2 回

実験手順

To a solution of 4-[1-phenyl-1-(5-(azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester (0.029 g, 0.074 mmol) in MeOH (5 mL) was added formaldehyde (0.322 mL, 57% solution in H2O) dropwise at rt. A solution of NaCNBH3 (0.026 g, 0.415 mmol) in MeOH (0.3 mL) was then added and the solution was stirred at rt for 15 min. The resulting mixture was poured into H2O and extracted with EtOAc (×3), and the combined organic layers were washed (H2O, brine), dried (Na2SO4) and concentrated. The residue was purified by preparative HPLC (NH4OAc) to afford the title compound (0.012 g, 17%) as a colorless solid:

後処理

  1. extractionextracted with EtOAc (×3)
  2. washthe combined organic layers were washed (H2O, brine)
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated
  5. customThe residue was purified by preparative HPLC (NH4OAc)

出典と根拠

ORDレコード
ord-a53c8482476d46778b9413c63d5195d0
出典データセット
uspto-grants-2008_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07348337B2

反応ノート

読み込み中…

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