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Potassium Acetate → 1,1-dimethylethyl 7-(2-methyl-1-{[(2-methylpropyl)-oxy]carbonyl}-1H-imidazo[4,5-b]pyridine-6-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)carboxylate

HRID 241148
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HRID 241148 반응식
Br[C:2]1[CH:3]=[C:4]2[N:10]([C:11]([O:13][CH2:14][CH:15]([CH3:17])[CH3:16])=[O:12])[C:9]([CH3:18])=[N:8][C:5]2=[N:6][CH:7]=1.[CH3:19][C:20]([O:23][C:24]([N:26]1[CH2:32][C:31]2[CH:33]=[C:34](B(O)O)[CH:35]=[CH:36][C:30]=2[O:29][CH2:28][CH2:27]1)=[O:25])([CH3:22])[CH3:21].C([O-])(=O)C.[K+]>O1CCOCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:18][C:9]1[N:10]([C:11]([O:13][CH2:14][CH:15]([CH3:17])[CH3:16])=[O:12])[C:4]2[C:5]([N:8]=1)=[N:6][CH:7]=[C:2]([C:34]1[CH:35]=[CH:36][C:30]3[O:29][CH2:28][CH2:27][N:26]([C:24]([O:23][C:20]([CH3:21])([CH3:19])[CH3:22])=[O:25])[CH2:32][C:31]=3[CH:33]=1)[CH:3]=2
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참가 물질

6

반응물 3

HCID 517044Potassium AcetateHCID 59604707(4-(Tert-butoxycarbonyl)-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)boronic acidHCID 66820076isobutyl 6-bromo-2-methyl-1H-imidazo[4,5-b]pyridine-1-carboxylate

생성물 1

HCID 668201401,1-dimethylethyl 7-(2-methyl-1-{[(2-methylpropyl)-oxy]carbonyl}-1H-imidazo[4,5-b]pyridine-6-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)carboxylate수율 33%

시약·촉매·용매 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매
HCID 312751,4-Dioxane용매

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온도
95 °C

실험 절차

A mixture of isobutyl 6-bromo-2-methyl-1H-imidazo[4,5-b]pyridine-1-carboxylate (2.2 g, 7.1 mmol) (reagent preparation 19), (4-{[(1,1-dimethylethyl)oxy]carbonyl}-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl)boronic acid (2.7 g, 9.2 mmol, example 1, step 2), potassium acetate (2.8 g, 28.3 mmol), and dichloro[1,1-bis(diphenylphosphino]-ferrocenepalladium (II) dichloromethane adduct (0.78 g, 1.1 mmol) in dioxane (50 ml) was stirred at 95° C. under nitrogen for 29 h. The mixture was cooled to room temperature, filtered through celite, and the filter cake was washed with ethyl acetate (100 ml). The filtrate was concentrated and purified by column chromatography on silica (0-100% ethyl acetate in hexanes) to give 1,1-dimethylethyl 7-(2-methyl-1-{[(2-methylpropyl)oxy]carbonyl}-1H-imidazo[4,5-b]pyridine-6-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)carboxylate (1.1 g, 33% yield) as a yellow solid. 1H NMR (400 MHz, CDCl3): 8.74 (d, 1H), 8.39 (s, 1H), 7.47 (d, 1H), 7.43 (s, 1H), 7.14 (d, 1H), 4.50 (s, 2H), 4.34 (d, 2H), 4.12 (m, 2H), 3.88 (m, 2H), 2.96 (s, 3H), 2.22 (m, 1H), 1.42 (s, 9H), 1.21 (d, 6H); MS (EI) for C26H32N4O5: 481 (MH+).

후처리

  1. temperatureThe mixture was cooled to room temperature
  2. filtrationfiltered through celite
  3. washthe filter cake was washed with ethyl acetate (100 ml)
  4. concentrationThe filtrate was concentrated
  5. custompurified by column chromatography on silica (0-100% ethyl acetate in hexanes)

출처 및 근거

ORD 기록
ord-e93b912058444f7db294ad4e8015fbd3
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08648066B2

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