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1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → 1-(6-Bromonaphth-2-ylsulphonyl)-4-[4-(2-methyl-4-pyridyl)benzoyl]piperazine

HRID 379563
ノート
印刷プレビュー

反応式

HRID 379563 の反応式
[CH3:1][C:2]1[CH:7]=[C:6]([C:8]2[CH:16]=[CH:15][C:11]([C:12]([OH:14])=O)=[CH:10][CH:9]=2)[CH:5]=[CH:4][N:3]=1.[Br:17][C:18]1[CH:19]=[C:20]2[C:25](=[CH:26][CH:27]=1)[CH:24]=[C:23]([S:28]([N:31]1[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]1)(=[O:30])=[O:29])[CH:22]=[CH:21]2.Cl.CN(C)CCCN=C=NCC>CN(C=O)C>[Br:17][C:18]1[CH:19]=[C:20]2[C:25](=[CH:26][CH:27]=1)[CH:24]=[C:23]([S:28]([N:31]1[CH2:32][CH2:33][N:34]([C:12](=[O:14])[C:11]3[CH:10]=[CH:9][C:8]([C:6]4[CH:5]=[CH:4][N:3]=[C:2]([CH3:1])[CH:7]=4)=[CH:16][CH:15]=3)[CH2:35][CH2:36]1)(=[O:29])=[O:30])[CH:22]=[CH:21]2
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 186177484-(2-Methylpyridin-4-yl)benzoic acidHCID 223297091-(6-Bromonaphthalene-2-sulfonyl)piperazine

生成物 1

HCID 223297341-(6-Bromonaphth-2-ylsulphonyl)-4-[4-(2-methyl-4-pyridyl)benzoyl]piperazine収率 68%

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒

実験手順

4-(2-Methyl-4-pyridyl)benzoic acid (62 mg), 1-(6-bromonaphth-2-ylsulphonyl) piperazine (94 mg) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (61 mg) were dissolved in DMF (2.5 ml) and the resultant solution stirred at ambient temperature for 16 hours. Excess DMF was removed in vacuo, water (10 ml) was added and the precipitate that formed was filtered, washed thoroughly with cold water and dried over P2O5. The solid thus obtained was purified by flash chromatography at 3 psi on silica (Merck ART 9385) eluting with 2.5% v/v methanol in dichloromethane. There was thus obtained the 1-(6-bromonaphth-2-ylsulphonyl)-4-[4-(2-methyl-4-pyridyl)benzoyl]piperazine (99 mg); mp 204-205° C.; 1H NMR (300 MHz, DMSO-d6) δ=2.48 (s,3H), 3.03 (s,4H), 3.57 (broad s, 4H), 7.46 (t,3H), 7.56 (s,1H), 7.77(d,2H), 7.83(d,2H), 8.17(q,2H), 8.42 (s,1H), 8.48 (d,2H), ppm; MS: m/z 550/552 (M+H)+ (1 Br pattern).

後処理

  1. customExcess DMF was removed in vacuo, water (10 ml)
  2. additionwas added
  3. customthe precipitate that formed
  4. filtrationwas filtered
  5. washwashed thoroughly with cold water
  6. dry with materialdried over P2O5
  7. customThe solid thus obtained
  8. customwas purified by flash chromatography at 3 psi on silica (Merck ART 9385)
  9. washeluting with 2.5% v/v methanol in dichloromethane

出典と根拠

ORDレコード
ord-b306ff9290864ff18c29d9944b253ab1
出典データセット
uspto-grants-2001_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06300330B1

反応ノート

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