Phosphorus oxide (P4O10) → 6-Bromo-4-(5-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]methyl}-1,3,4-oxadiazol-2-yl)-1-[(4-methylphenyl)sulfonyl]-1H-indazole

HRID 520550Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 520550
[Br:1][C:2]1[CH:3]=[C:4]([C:21]([NH:23][NH:24][C:25](=[O:35])[CH2:26][N:27]2[CH2:32][C@H:31]([CH3:33])[O:30][C@H:29]([CH3:34])[CH2:28]2)=O)[C:5]2[CH:6]=[N:7][N:8]([S:11]([C:14]3[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][CH:15]=3)(=[O:13])=[O:12])[C:9]=2[CH:10]=1.O=P12OP3(OP(OP(O3)(O1)=O)(=O)O2)=O.[OH-].C([NH+](CC)CC)C>O1CCCC1>[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[N:7][N:8]2[S:11]([C:14]2[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][CH:15]=2)(=[O:12])=[O:13])=[C:4]([C:21]2[O:35][C:25]([CH2:26][N:27]3[CH2:32][C@H:31]([CH3:33])[O:30][C@H:29]([CH3:34])[CH2:28]3)=[N:24][N:23]=2)[CH:3]=1

Komponenten

5

Edukt 3

HCID 14812Phosphorus oxide (P4O10)HCID 21903323Triethylammonium hydroxideHCID 666915176-Bromo-N'-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]acetyl}-1-[(4-methylphenyl)sulfonyl]-1H-indazole-4-carbohydrazide2×

Produkt 1

HCID 666957066-Bromo-4-(5-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]methyl}-1,3,4-oxadiazol-2-yl)-1-[(4-methylphenyl)sulfonyl]-1H-indazoleAusbeute 73,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
75 °C

Versuchsvorschrift

6-Bromo-N′-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]acetyl}-1-[(4-methylphenyl)sulfonyl]-1H-indazole-4-carbohydrazide (950 mg, 1.683 mmol) was dried over phosphorus pentoxide in a desicator overnight. 6-bromo-N′-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]acetyl}-1-[(4-methylphenyl)sulfonyl]-1H-indazole-4-carbohydrazide (950 mg, 1.683 mmol) and methoxycarbonylsulfamoyl)triethylammonium hydroxide (602 mg, 2.52 mmol) were suspended in anhydrous tetrahydrofuran (20 ml) and heated to 75° C. for 2 h. The solvent was removed in vacuo and the residue partitioned between dichloromethane (15 ml) and saturated sodium bicarbonate solution (15 ml). The layers were separated (hydrophobic frit), the aqueous washed with further dichloromethane (5 ml) and the combined organics concentrated in vacuo to give a yellow solid. This was purified by column chromatography, loading in dichloromethane onto a silica cartridge 50 g, using a 0-100% ethyl acetate-cyclohexane over 40 mins. The appropriate fractions were combined and evaporated in vacuo to give the title compound as a white solid (680 mg).

Aufarbeitung

  1. customThe solvent was removed in vacuo
  2. customthe residue partitioned between dichloromethane (15 ml) and saturated sodium bicarbonate solution (15 ml)
  3. customThe layers were separated (hydrophobic frit)
  4. washthe aqueous washed with further dichloromethane (5 ml)
  5. concentrationthe combined organics concentrated in vacuo
  6. customto give a yellow solid
  7. customThis was purified by column chromatography, loading in dichloromethane onto a silica cartridge 50 g
  8. customover 40 mins
  9. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-10672c6d9f094e9ab17beb6eb7a74786
Quelldatensatz
uspto-grants-2016_05
Patentnummer
US09326987B2

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