tert-Butyl piperazine-1-carboxylate → HCID 67774159、化合物

HRID 1963081ノート

反応式

HRID 1963081 の反応式
[Cl:1][C:2]1[C:3]2[N:4]([C:13]([C:31](O)=[O:32])=[C:14]([CH2:22][C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([F:29])[C:24]=3[CH3:30])[C:15]=2[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[N:5]=[CH:6][C:7]=1[C:8]([O:10][CH2:11][CH3:12])=[O:9].[C:34]([O:38][C:39]([N:41]1[CH2:46][CH2:45][NH:44][CH2:43][CH2:42]1)=[O:40])([CH3:37])([CH3:36])[CH3:35].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>C(Cl)Cl>[CH2:11]([O:10][C:8]([C:7]1[CH:6]=[N:5][N:4]2[C:13]([C:31]([N:44]3[CH2:43][CH2:42][N:41]([C:39]([O:38][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:40])[CH2:46][CH2:45]3)=[O:32])=[C:14]([CH2:22][C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([F:29])[C:24]=3[CH3:30])[C:15]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[C:3]2[C:2]=1[Cl:1])=[O:9])[CH3:12]

参加物

5

反応物 3

HCID 143452tert-Butyl piperazine-1-carboxylateHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 67774375HCID 67774375、化合物

生成物 1

HCID 67774159HCID 67774159、化合物収率 94.8%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

The compound of step 8 (2.335 g, 5.00 mmol), 1-tert-butoxycarbonyl-piperazine (1.024 g, 5.50 mmol), EDIA (2.18 ml, 12.50 mmol) and TBTU (1.766 g, 5.50 mmol) in 50 ml of anhydrous DCM were stirred at room temperature for 1 h. The solution was then washed with 0.5 N hydrochloric acid (75 ml) and the aqueous phase was extracted with DCM (25 ml). The combined organic phases were washed with a saturated solution of sodium hydrogencarbonate (50 ml) and brine (50 ml), dried over magnesium sulfate, filtered and evaporated to dryness under reduced pressure. The residue was purified by chromatography on silica gel (cyclohexane/EA, 80:20, then 75:25) to give 3.01 g of the title compound as a yellow solid melting at 88-90° C.

後処理

  1. washThe solution was then washed with 0.5 N hydrochloric acid (75 ml)
  2. extractionthe aqueous phase was extracted with DCM (25 ml)
  3. washThe combined organic phases were washed with a saturated solution of sodium hydrogencarbonate (50 ml) and brine (50 ml)
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. customevaporated to dryness under reduced pressure
  7. customThe residue was purified by chromatography on silica gel (cyclohexane/EA, 80:20

出典と根拠

ORDレコード
ord-e7a5ef9ba98b414184274bb5dbfe06ca
出典データセット
uspto-grants-2013_04
特許番号
US08415336B2

反応ノート

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