Triethylamine → HCID 11553973、化合物

HRID 969883ノート

反応式

HRID 969883 の反応式
[Br:1][C:2]1[CH:3]=[C:4]2[O:8][C:7]([C:9]3[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][CH:10]=3)=[N:6][C:5]2=[C:16]([C:18](O)=[O:19])[CH:17]=1.Cl.C(N=C=NCCCN(C)C)C.ON1C2C=CC=CC=2N=N1.Cl.Cl.[NH2:45][CH:46]1[CH:51]2[CH2:52][CH2:53][N:48]([CH2:49][CH2:50]2)[CH2:47]1.C(N(CC)CC)C>CN(C=O)C.C(OCC)(=O)C>[N:48]12[CH2:53][CH2:52][CH:51]([CH2:50][CH2:49]1)[CH:46]([NH:45][C:18]([C:16]1[CH:17]=[C:2]([Br:1])[CH:3]=[C:4]3[O:8][C:7]([C:9]4[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][CH:10]=4)=[N:6][C:5]=13)=[O:19])[CH2:47]2

参加物

8

反応物 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 197853Quinuclidine, 3-amino-, dihydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 68459376HCID 68459376、化合物

生成物 1

HCID 11553973HCID 11553973、化合物収率 54%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A mixture of 6-bromo-2-p-tolylbenzoxazole-4-carboxylic acid (85 mg, 0.26 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (60 mg, 0.31 mmol), 1-hydroxybenzotriazole (60 mg, 0.31 mmol) and 3-aminoquinuclidine dihydrochloride (61 mg, 0.31 mmol) in DMF (5 mL) was stirred 10 min at room temperature, then triethylamine (0.12 mL, 1.02 mmol) was added. The resulting reaction mixture was stirred at room temperature overnight. The mixture was diluted with ethyl acetate (20 mL), and then washed with a saturated solution of sodium bicarbonate. The aqueous layer was further extracted with ethyl acetate (2×25 mL). The combined organic layers were dried (Na2SO4), filtered and concentrated under reduced pressure. The crude material was purified by column chromatography (silica gel, 90:9:1 ethyl acetate/methanol/concentrated ammonium hydroxide) to afford N-(1-azabicyclo[2.2.2]oct-3-yl)-6-bromo-2-p-tolylbenzoxazole-4-carboxamide (60 mg, 54%) as a white solid: 1H NMR (500 MHz, CDCl3) δ 9.48 (d, J=7.3 Hz, 1H), 8.30 (d, J=1.8 Hz, 1H), 8.10 (d, J=8.3 Hz, 2H), 7.85 (d, J=1.8 Hz, 1H), 7.37 (d, J=8.0 Hz, 2H), 4.35-4.25 (m, 1H), 3.60-3.45 (m, 1H), 3.15-3.00 (m, 2H), 2.95-2.82 (m, 2H),

後処理

  1. customThe resulting reaction mixture
  2. stirringwas stirred at room temperature overnight
  3. washwashed with a saturated solution of sodium bicarbonate
  4. extractionThe aqueous layer was further extracted with ethyl acetate (2×25 mL)
  5. dry with materialThe combined organic layers were dried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude material was purified by column chromatography (silica gel, 90:9:1 ethyl acetate/methanol/concentrated ammonium hydroxide)

出典と根拠

ORDレコード
ord-77372a98cc634a599687b05e4b102cbe
出典データセット
uspto-grants-2007_12
特許番号
US07307094B2

反応ノート

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