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Triethylamine → tert-Butyl [(1R,3S)-3-isopropyl-3-({4-[4-(trifluoromethyl)pyrimidin-2-yl]piperazin-1-yl}carbonyl)cyclopentyl]carbamate

HRID 270579
ノート
印刷プレビュー

反応式

HRID 270579 の反応式
[N:1]1([C:7]2[N:12]=[C:11]([C:13]([F:16])([F:15])[F:14])[CH:10]=[CH:9][N:8]=2)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[C:17]([O:21][C:22]([NH:24][C@@H:25]1[CH2:29][CH2:28][C@:27]([CH:33]([CH3:35])[CH3:34])([C:30](O)=[O:31])[CH2:26]1)=[O:23])([CH3:20])([CH3:19])[CH3:18].C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>C(Cl)Cl>[CH:33]([C@:27]1([C:30]([N:4]2[CH2:5][CH2:6][N:1]([C:7]3[N:12]=[C:11]([C:13]([F:14])([F:16])[F:15])[CH:10]=[CH:9][N:8]=3)[CH2:2][CH2:3]2)=[O:31])[CH2:28][CH2:29][C@@H:25]([NH:24][C:22](=[O:23])[O:21][C:17]([CH3:19])([CH3:18])[CH3:20])[CH2:26]1)([CH3:35])[CH3:34]
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 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 27783342-(Piperazin-1-yl)-4-(trifluoromethyl)pyrimidineHCID 60122293(1S,3R)-3-((Tert-butoxycarbonyl)amino)-1-isopropylcyclopentanecarboxylic acid

生成物 1

HCID 59833584tert-Butyl [(1R,3S)-3-isopropyl-3-({4-[4-(trifluoromethyl)pyrimidin-2-yl]piperazin-1-yl}carbonyl)cyclopentyl]carbamate
収率 55.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of 2-piperazin-1-yl-4-(trifluoromethyl)pyrimidine (250 mg, 1.08 mmol), (1S,3R)-3-[(tert-butoxycarbonyl)amino]-1-isopropylcyclopentanecarboxylic acid (300 mg, 1.1 mmol) and triethylamine (0.45 mL, 3.2 mmol) in methylene chloride (10 mL) was added benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (520 mg, 1.2 mmol). After being stirred overnight, the reaction was quenched with saturated NaHCO3. The resulting solution was extracted with EtOAc three times. The combined organic layers were dried (MgSO4) and concentrated. Purification by column chromatography on silica gel (20%-40% EtOAc/hexanes) provided 290 mg of desired product. MS calculated for C23H34F3N5O3: (M+H) 486; found 386.1 (M-Boc+1).

後処理

  1. customthe reaction was quenched with saturated NaHCO3
  2. extractionThe resulting solution was extracted with EtOAc three times
  3. dry with materialThe combined organic layers were dried (MgSO4)
  4. concentrationconcentrated
  5. customPurification by column chromatography on silica gel (20%-40% EtOAc/hexanes)

出典と根拠

ORDレコード
ord-18146c2bf8b845ddab3375512e915f94
出典データセット
uspto-grants-2008_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07449467B2

反応ノート

読み込み中…

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