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Diisopropylethylamine → tert-butyl (1R,3R,4S)-3-(methoxymethyl)-4-(2-(3-(trifluoromethyl)benzamido)acetamido)cyclohexylcarbamate

HRID 2225246
ノート
印刷プレビュー

反応式

HRID 2225246 の反応式
[NH2:1][C@H:2]1[CH2:7][CH2:6][C@@H:5]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12])[CH2:4][C@H:3]1[CH2:16][O:17][CH3:18].[F:19][C:20]([F:35])([F:34])[C:21]1[CH:22]=[C:23]([CH:31]=[CH:32][CH:33]=1)[C:24]([NH:26][CH2:27][C:28](O)=[O:29])=[O:25].C(N(C(C)C)CC)(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>C(#N)C.C(OCC)(=O)C>[CH3:18][O:17][CH2:16][C@H:3]1[C@@H:2]([NH:1][C:28](=[O:29])[CH2:27][NH:26][C:24](=[O:25])[C:23]2[CH:31]=[CH:32][CH:33]=[C:21]([C:20]([F:19])([F:35])[F:34])[CH:22]=2)[CH2:7][CH2:6][C@@H:5]([NH:8][C:9](=[O:15])[O:10][C:11]([CH3:12])([CH3:13])[CH3:14])[CH2:4]1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2777432((3-(Trifluoromethyl)benzoyl)amino)acetic acidHCID 68765639tert-butyl (1R,3R,4S)-4-amino-3-(methoxymethyl)cyclohexylcarbamate

生成物 1

HCID 86596947tert-butyl (1R,3R,4S)-3-(methoxymethyl)-4-(2-(3-(trifluoromethyl)benzamido)acetamido)cyclohexylcarbamate
収率 60.4%

試薬・触媒・溶媒 2

HCID 6342Acetonitrile溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A solution of tert-butyl (1R,3R,4S)-4-amino-3-(methoxymethyl)cyclohexylcarbamate (45 mg, assumed 0.163 mmol) in acetonitrile (1.5 mL) was treated sequentially with 2-(3-(trifluoromethyl)benzamido)acetic acid (43 mg, 0.174 mmol, see PCT WO 0250019), diisopropylethylamine (61 μL, 0.348 mmol) and TBTU (62 mg, 0.192 mmol). The mixture was stirred at rt for 2.75 h, then was diluted with ethyl acetate, washed sequentially with 1.0 M aqueous HCl, saturated aqueous NaHCO3, water and brine, dried over Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with 1:3 v/v hexane-ethyl acetate, to provide tert-butyl (1R,3R,4S)-3-(methoxymethyl)-4-(2-(3-(trifluoromethyl)benzamido)acetamido)cyclohexylcarbamate as a white solid (48 mg). MS found: (M+H)+=488.3.

後処理

  1. washwashed sequentially with 1.0 M aqueous HCl, saturated aqueous NaHCO3, water and brine
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated under vacuum
  4. customThe residue was purified by flash column chromatography on silica gel
  5. washeluting with 1:3 v/v hexane-ethyl acetate

出典と根拠

ORDレコード
ord-e4f72adb51064f89bff319026b14b724
出典データセット
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07378409B2

反応ノート

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