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Triethylamine → (RS,SR)-2-(benzenesulfonyl-fluoro-methylcarbamoyl-methyl)-6-chloro-1,2,3,4-tetrahydro-carbazole-9-carboxylic acid tert-butyl ester

HRID 602808
ノート
印刷プレビュー

反応式

HRID 602808 の反応式
[C:1]1([S:7]([C:10]([CH:16]2[CH2:28][CH2:27][C:26]3[C:25]4[C:20](=[CH:21][CH:22]=[C:23]([Cl:29])[CH:24]=4)[NH:19][C:18]=3[CH2:17]2)([F:15])[C:11]([NH:13][CH3:14])=[O:12])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N(CC)CC)C.[O:37](C(OC(C)(C)C)=O)[C:38]([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=O>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:41]([O:40][C:38]([N:19]1[C:18]2[CH2:17][CH:16]([C:10]([S:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)(=[O:8])=[O:9])([F:15])[C:11](=[O:12])[NH:13][CH3:14])[CH2:28][CH2:27][C:26]=2[C:25]2[C:20]1=[CH:21][CH:22]=[C:23]([Cl:29])[CH:24]=2)=[O:37])([CH3:44])([CH3:43])[CH3:42]
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 3

HCID 8471TriethylamineHCID 90495Di-tert-butyl dicarbonateHCID 11270482(RS,SR)-2-benzenesulfonyl-2-(6-chloro-2,3,4,9-tetrahydro-1H-carbazol-2-yl)-2-fluoro-N-methyl-acetamide

生成物 1

HCID 67267476(RS,SR)-2-(benzenesulfonyl-fluoro-methylcarbamoyl-methyl)-6-chloro-1,2,3,4-tetrahydro-carbazole-9-carboxylic acid tert-butyl ester収率 78.5%

試薬・触媒・溶媒 2

HCID 14284
4-(Dimethylamino)pyridine
触媒
HCID 6344Dichloromethane溶媒

実験手順

0.924 g (0.002 mol) of (RS, SR)-2-benzenesulfonyl-2-(6-chloro-2,3,4,9-tetrahydro-1H-carbazol-2-yl)-2-fluoro-N-methyl-acetamide were dissolved in 20 mL CH2Cl2 at RT. Then, 0.59 mL triethylamine (0.004 mol, 2 eq), 26 mg DMAP (0.2 mmol, 0.1 eq) and 0.556 g BOC2O (0.003 mol, 1.2 eq) were added. The reaction mixture was stirred for 2H30. The reaction was quenched with a saturated NH4Cl aqueous solution, and the product extracted with CH2Cl2. The combined organic phases were dried on Na2SO4, filtered and evaporated. The crude material was precipitated in diethyl ether. The solvent was removed and the remaining solid was dried under vaccum to yield to 0.840 g (74%) of (RS, SR)-2-(benzenesulfonyl-fluoro-methylcarbamoyl-methyl)-6-chloro-1,2,3,4-tetrahydro-carbazole-9-carboxylic acid tert-butyl ester as a white solid, MS: 552 (MNH4+).

後処理

  1. customThe reaction was quenched with a saturated NH4Cl aqueous solution
  2. extractionthe product extracted with CH2Cl2
  3. customThe combined organic phases were dried on Na2SO4
  4. filtrationfiltered
  5. customevaporated
  6. customThe crude material was precipitated in diethyl ether
  7. customThe solvent was removed
  8. customthe remaining solid was dried under vaccum

出典と根拠

ORDレコード
ord-ccabb7dbfe3c4c09b06617d08c10f088
出典データセット
uspto-grants-2011_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07906546B2

反応ノート

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