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3-bromo-5-[[1-(tert-butoxycarbonyl)-2(R)-pyrrolidinyl]methoxy]pyridine → HCID 59371473, Verbindung

HRID 2095388
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2095388
Br[C:2]1[CH:3]=[N:4][CH:5]=[C:6]([O:8][CH2:9][C@H:10]2[CH2:14][CH2:13][CH2:12][N:11]2[C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH:7]=1.[N:22]1[CH:27]=[CH:26][CH:25]=[C:24]([CH2:28][O:29][CH2:30][CH2:31][CH:32]2[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]2)[CH:23]=1.CC(C)([O-])C.[K+]>C1(C)C=CC=CC=1.CCOC(C)=O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1>[C:18]([O:17][C:15]([N:11]1[CH2:12][CH2:13][CH2:14][C@H:10]1[CH2:9][O:8][C:6]1[CH:5]=[N:4][CH:3]=[C:2]([N:35]2[CH2:34][CH2:33][CH:32]([CH2:31][CH2:30][O:29][CH2:28][C:24]3[CH:23]=[N:22][CH:27]=[CH:26][CH:25]=3)[CH2:37][CH2:36]2)[CH:7]=1)=[O:16])([CH3:21])([CH3:20])[CH3:19]
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Komponenten

8

Edukt 3

HCID 154802363-bromo-5-[[1-(tert-butoxycarbonyl)-2(R)-pyrrolidinyl]methoxy]pyridineHCID 23665647Potassium tert-butoxideHCID 593713854-[2-(3-Pyridylmethoxy)ethyl]piperidine

Produkt 1

HCID 59371473HCID 59371473, VerbindungAusbeute 89,4 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 636044
1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)
Katalysator
HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysator
HCID 1140TolueneLösungsmittel
HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of 3-bromo-5-[[1-(tert-butoxycarbonyl)-2(R)-pyrrolidinyl]methoxy]pyridine (147 mg, 0.41 mmol) and 4-[2-(3-pyridylmethoxy)ethyl]piperidine (99.8 mg, 0.45 mmol, 1.1 equiv.) in anhydrous toluene (2 mL) were added successively potassium tert-butoxide (75 mg, 0.61 mmol, 1.5 equiv.), tris(dibenzylideneacetone)dipalladium(0) (7.5 mg, 8.0 μmol, 0.02 equiv.), and 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos; 14.3 mg, 24 μmol, 0.06 equiv.). The mixture was degassed and purged with Ar (3 cycles), then warmed by microwave irradiation under Ar. After reaction for 30-40 minutes at 130° C., the mixture was cooled to room temperature, diluted with EtOAc, and washed with brine. The solution was dried over Na2SO4 and evaporated, and the residue was purified by CC (SiO2, CH2Cl2/EtOAc 4:1 followed by CH2Cl2/MeOH 10:1). The product (182 mg, 89%) was obtained as a pale yellow oil. 1H NMR (CDCl3, 400 MHz) δ 8.56 (br, 2H), 7.80 (m, 3H), 7.46 (m, 1H), 6.94 (m, 1H), 4.51 (s, 2H), 4.12 (m, 2H), 3.83 (m, 1H), 3.66 (m, 2H), 3.54 (m, 2H), 3.39 (m, 2H), 2.76 (t, 2H, J=11.2 Hz), 2.01-1.80 (m, 5H), 1.63 (m, 4H), 1.46 (s, 9H), 1.33 (m, 2H).

Aufarbeitung

  1. customThe mixture was degassed
  2. custompurged with Ar (3 cycles)
  3. temperaturewarmed by microwave irradiation under Ar
  4. customAfter reaction for 30-40 minutes at 130° C.
  5. washwashed with brine
  6. dry with materialThe solution was dried over Na2SO4
  7. customevaporated
  8. customthe residue was purified by CC (SiO2, CH2Cl2/EtOAc 4:1 followed by CH2Cl2/MeOH 10:1)

Quellen und Nachweise

ORD-Eintrag
ord-9d94b420c43f45bd9b201bd49d954072
Quelldatensatz
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08445684B2

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