Sodium Carbonate → (rac.)-(1R*,5S*)-7-{6-[3-(2-Chloro-3,6-difluoro-phenyl)-isoxazol-5-ylmethoxy]-pyridin-3-yl}-9-methyl-3,9-diaza-bicyclo[3.3.1]non-6-ene-3,6-dicarboxylic Acid 3-tert-butyl Ester 6-ethyl Ester

HRID 2428186

Reaktionsgleichung

Reaktionsgleichung von HRID 2428186
[CH2:1]([O:3][C:4]([C:6]1[C@@H:7]2[N:22]([CH3:23])[C@H:11]([CH2:12][C:13]=1OS(C(F)(F)F)(=O)=O)[CH2:10][N:9]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:8]2)=[O:5])[CH3:2].[Cl:31][C:32]1[C:37]([F:38])=[CH:36][CH:35]=[C:34]([F:39])[C:33]=1[C:40]1[CH:44]=[C:43]([CH2:45][O:46][C:47]2[CH:52]=[CH:51][C:50](B3OC(C)(C)C(C)(C)O3)=[CH:49][N:48]=2)[O:42][N:41]=1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.CCOC(C)=O.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>[CH2:1]([O:3][C:4]([C:6]1[C@@H:7]2[N:22]([CH3:23])[C@H:11]([CH2:12][C:13]=1[C:50]1[CH:49]=[N:48][C:47]([O:46][CH2:45][C:43]3[O:42][N:41]=[C:40]([C:33]4[C:34]([F:39])=[CH:35][CH:36]=[C:37]([F:38])[C:32]=4[Cl:31])[CH:44]=3)=[CH:52][CH:51]=1)[CH2:10][N:9]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:8]2)=[O:5])[CH3:2]

Komponenten

7

Edukt 3

HCID 10340Sodium CarbonateHCID 44158352(rac.)-(1R*,5S*)-9-Methyl-7-trifluoromethanesulfonyloxy-3,9-diaza-bicyclo[3.3.1]non-6-ene-3,6-dicarboxylic acid 3-tert-butyl ester 6-ethyl esterHCID 671487962-[3-(2-Chloro-3,6-difluoro-phenyl)-isoxazol-5-ylmethoxy]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine

Produkt 1

HCID 131728976(rac.)-(1R*,5S*)-7-{6-[3-(2-Chloro-3,6-difluoro-phenyl)-isoxazol-5-ylmethoxy]-pyridin-3-yl}-9-methyl-3,9-diaza-bicyclo[3.3.1]non-6-ene-3,6-dicarboxylic Acid 3-tert-butyl Ester 6-ethyl EsterAusbeute 81,4 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

(rac.)-(1R*,5S*)-9-Methyl-7-trifluoromethanesulfonyloxy-3,9-diaza-bicyclo[3.3.1]non-6-ene-3,6-dicarboxylic acid 3-tert-butyl ester 6-ethyl ester (WO 2003/093267; 1.00 g, 2.18 mmol) and 2-[3-(2-chloro-3,6-difluoro-phenyl)-isoxazol-5-ylmethoxy]-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine (1.41 g, 3.27 mmol) were dissolved in DME (14.5 mL), and aq. 2M Na2CO3 (11.0 mL) was added. The mixture was degassed with N2 (5 min). Pd(PPh3)4 (126 mg, 0.109 mmol) was added, and the mixture was rapidly heated to 80° C. The mixture was stirred at this temperature for 1 h, and was allowed to cool to rt. The mixture was diluted with EtOAc (100 mL), and was washed with water (100 mL). The org. layer was dried over MgSO4, filtered, and the solvents were removed under reduced pressure. Purification of the crude by FC(CH2Cl2/MeOH 95:5) yielded the title compound (1.12 g, 81%). LC-MS: tR=0.91 min; ES+: 631.34.

Aufarbeitung

  1. customThe mixture was degassed with N2 (5 min)
  2. temperatureto cool to rt
  3. washwas washed with water (100 mL)
  4. dry with materiallayer was dried over MgSO4
  5. filtrationfiltered
  6. customthe solvents were removed under reduced pressure
  7. customPurification of the crude by FC(CH2Cl2/MeOH 95:5)

Quellen und Nachweise

ORD-Eintrag
ord-8fcea0fde9c547858f3300d88722485c
Quelldatensatz
uspto-grants-2011_06
Patentnummer
US07968720B2

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