Water → tert-butyl {1-[4-(9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl)phenyl]cyclobutyl}carbamate

HRID 1046994Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1046994
Br[C:2]1[N:6]2[C:7]3[CH:19]=[CH:18][CH:17]=[N:16][C:8]=3[NH:9][C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=3[C:5]2=[N:4][CH:3]=1.CC1(C)C(C)(C)OB([C:28]2[CH:33]=[CH:32][C:31]([C:34]3([NH:38][C:39](=[O:45])[O:40][C:41]([CH3:44])([CH3:43])[CH3:42])[CH2:37][CH2:36][CH2:35]3)=[CH:30][CH:29]=2)O1.C([O-])(O)=O.[Na+].O>C1(C)C(CCO)=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[N:4]1[CH:3]=[C:2]([C:28]2[CH:29]=[CH:30][C:31]([C:34]3([NH:38][C:39](=[O:45])[O:40][C:41]([CH3:43])([CH3:42])[CH3:44])[CH2:35][CH2:36][CH2:37]3)=[CH:32][CH:33]=2)[N:6]2[C:5]=1[C:11]1[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=1[NH:9][C:8]1[N:16]=[CH:17][CH:18]=[CH:19][C:7]2=1

Komponenten

7

Edukt 4

HCID 962WaterHCID 516892Sodium BicarbonateHCID 58326444tert-Butyl (1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclobutyl)carbamateHCID 675039063-bromo-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepine

Produkt 1

HCID 69087639tert-butyl {1-[4-(9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepin-3-yl)phenyl]cyclobutyl}carbamate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 882672-Methylphenethyl alcoholLösungsmittel

Versuchsvorschrift

A mixture of 3-bromo-9H-imidazo[1,2-d]pyrido[2,3-b][1,4]benzodiazepine (1.48 g, 4.7 mmol), tert-butyl {1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclobutyl}carbamate (2.12 g, 5.7 mmol), sat.NaHCO3 (4 mL), and tetrakis(triphenylphosphine)palladium(0) (0.55 g, 0.47 mmol) in toluene-ethanol (1/1, 40 mL) was heated to refluxed temperature for 15 hours. After cooling to room temperature the reaction mixture was poured into water and extracted with ethyl acetate. The organic layers were washed with brine and dried over anhydrous Na2SO4. After filtration the solvent was evaporated in vacuo. The crude product was purified by silica gel chromatography (hexane/ethyl acetate) to give a yellow solid (quant.). 1HNMR (CDCl3) 400 MHz δ: 8.09-8.06 (m, 2H), 7.39 (s, 1H), 7.37(d, J=8.0 Hz, 2H), 7.30 (td, J=7.6, 1.5 Hz, 1H), 7.15 (d, J=8.0 Hz, 2H), 7.16-7.10 (m, 1H), 6.98 (dd, J=8.0, 1.2 Hz, 1H), 6.95 (d, J=8.0 Hz, 1H), 6.70 (dd, J=7.7, 4.9 Hz, 1H), 6.27 (s, 1H), 5.08 (s, 1H), 2.57-2.39 (m, 4H), 2.18-2.07 (m, 1H), 1.93-1.84 (m, 1H), 1.48-1.19 (brs, 9H); LC/MS [M+H]: 480.

Aufarbeitung

  1. temperatureto refluxed temperature for 15 hours
  2. extractionextracted with ethyl acetate
  3. washThe organic layers were washed with brine
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationAfter filtration the solvent
  6. customwas evaporated in vacuo
  7. customThe crude product was purified by silica gel chromatography (hexane/ethyl acetate)
  8. customto give a yellow solid (quant.)

Quellen und Nachweise

ORD-Eintrag
ord-70bfd116120745b78d8be207ce7afe87
Quelldatensatz
uspto-grants-2013_10
Patentnummer
US08569331B2

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