Triethylamine → HCID 11655724, 화합물

HRID 506296노트

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HRID 506296 반응식
[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]([OH:20])=O)[CH:17]=1.Cl.Cl.[NH2:23][CH:24]1[CH2:31][CH:30]2[N:32]([CH3:33])[CH:26]([CH2:27][CH2:28][CH2:29]2)[CH2:25]1.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.C(N(CC)CC)C>CN(C=O)C.C(OCC)(=O)C>[CH3:33][N:32]1[CH:26]2[CH2:27][CH2:28][CH2:29][CH:30]1[CH2:31][CH:24]([NH:23][C:18]([C:16]1[CH:17]=[C:2]([Br:1])[CH:3]=[C:4]3[O:8][C:7]([C:9]4[CH:10]=[CH:11][C:12]([CH3:15])=[CH:13][CH:14]=4)=[N:6][C:5]=13)=[O:20])[CH2:25]2

참가 물질

8

반응물 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 189569979-Methyl-9-azabicyclo[3.3.1]nonan-3-amine;dihydrochlorideHCID 68459376HCID 68459376, 화합물

생성물 1

HCID 11655724HCID 11655724, 화합물수율 25%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

A mixture of 6-bromo-2-p-tolylbenzoxazole-4-carboxylic acid (85 mg, 0.26 mmol), 3-amino-9-methyl-9-azabicyclo[3.3.1]nonane dihydrochloride (85 mg, 0.31 mmol), 1-hydroxybenzotriazole (69 mg, 0.51 mmol) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (98 mg, 0.51 mmol) in DMF (5 mL) was stirred for 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 (2×50 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) followed by recrystallization from acetonitrile to afford N-(9-methyl-9-azabicyclo[3.3.1]non-3-yl)-6-bromo-2-p-tolylbenzoxazole-4-carboxamide (30 mg, 25%) as a white solid: 1H NMR (300 MHz, CDCl3) δ 8.94 (d, J=7.3 Hz, 1H), 8.33 (d, J=1.8 Hz, 1H), 8.12 (d, J=8.2 Hz, 2H), 7.83 (d, J=1.9 Hz, 1H), 7.39 (d, J=8.0 Hz, 2H), 4.63-4.50 (m, 1H), 3.12 (d, J=10.6 Hz, 2H), 2.70-2.55 (m, 2H), 2.54 (s, 3H), 2.48 (s, 3H), 2.20-1.95 (m, 2H), 1.65-1.45 (m, 4H), 1.20-1.10 (m, 2H); MS (ESI+) m/z 468 (M+H); HPLC 98.4% (AUC), tR=14.06 mm.

후처리

  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 (2×50 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)
  9. customfollowed by recrystallization from acetonitrile

출처 및 근거

ORD 기록
ord-4b33e9021fcb403f8d7b41f04313aca8
출처 데이터셋
uspto-grants-2010_08
특허 번호
US07781430B2

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