Triethylamine → 6-(3-Adamantan-1-yl-ureido)-hexanoic acid benzyl ester

HRID 1176836ノート

反応式

HRID 1176836 の反応式
[C:1]1([CH3:11])[CH:6]=CC(S(O)(=O)=O)=C[CH:2]=1.[CH2:12]([O:19][C:20](=[O:27])[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][NH2:26])[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.ClC(Cl)([O:31]C(=O)OC(Cl)(Cl)Cl)Cl.C(N(CC)CC)C.Cl.Cl.C[N:50]([CH3:59])[C:51]1[CH:58]=[CH:57][C:54](CN)=[CH:53][CH:52]=1>ClCCl>[CH2:12]([O:19][C:20](=[O:27])[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][NH:26][C:59]([NH:50][C:51]12[CH2:52][CH:53]3[CH2:54][CH:57]([CH2:11][CH:1]([CH2:6]3)[CH2:2]1)[CH2:58]2)=[O:31])[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

参加物

6

反応物 4

HCID 8471TriethylamineHCID 94429TriphosgeneHCID 27346334-(aminomethyl)-N,N-dimethylaniline dihydrochlorideHCID 13077333Hexanoic acid, 6-amino-, phenylmethyl ester, 4-methylbenzenesulfonate (1:1)

生成物 1

HCID 670063306-(3-Adamantan-1-yl-ureido)-hexanoic acid benzyl ester収率 180.9%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a vigorously stirred suspension of 6-amino-hexanoic acid benzyl ester toluene-4-sulfonic acid (0.786 g, 2.00 mmol) and triphosgene (0.200 g, 0.667 mmol) in dichloromethane (30 mL) at −78° C. under inert atmosphere, was added triethylamine (1.0 mL, 7.188 mmol, in 10 mL dichloromethane) dropwise via additional funnel over a period of 2 hours. The cooling bath was removed and the resulting reaction was allowed to stir at room temperature for 1 hour, after which time, 4-Dimethylaminobenzylamine dihydrochloride (0.303 g, 2.00 mmol) was added to the reaction mixture. After stirring overnight, the mixture was washed with brine (20 mL) and the aqueous layer was extracted with dichloromethane. The combined organic layers were dried over sodium sulfate and the solvent was evaporated. The residue was purified using flash column chromatography (silica gel 60, CH2Cl2/EtOAc 6:1 to 4:1) to afford 6-(3-Adamantan-1-yl-ureido)-hexanoic acid benzyl ester 0.481 g (61% yield). 1H NMR (300 MHz, CDCl3) δ (ppm) 7.34 (m, 5H), 5.11 (s, 2H), 4.61 (t, J=5.7 Hz, 1H), 4.43 (s, 1H), 3.08 (dt, J=6.9, 5.7 Hz, 2H), 2.35 (t, J=7.5 Hz, 2H), 2.04 (m, 3H), 1.94 (m, 6H), 1.65 (m, 8H) 1.46 (m, 2H) 1.31 (m, 2H). 13C NMR (75 MHz, CDCl3) δ (ppm) 173.5, 157.4, 135.9, 128.5, 128.2, 128.1, 66.1, 50.6, 42.5, 39.8, 36.4, 34.1, 29.9, 29.5, 26.4, 24.5.

後処理

  1. customThe cooling bath was removed
  2. customthe resulting reaction
  3. stirringAfter stirring overnight
  4. washthe mixture was washed with brine (20 mL)
  5. extractionthe aqueous layer was extracted with dichloromethane
  6. dry with materialThe combined organic layers were dried over sodium sulfate
  7. customthe solvent was evaporated
  8. customThe residue was purified

出典と根拠

ORDレコード
ord-e5d3c14d70bf4e7fba18ea358d334e1b
出典データセット
uspto-grants-2010_11
特許番号
US07842835B2

反応ノート

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