Sodium Azide → (+/-)-N,N-di(tert-butyloxycarbonyl)-[(4aR*,8aR*)-8a-(4-azidothiophen-2-yl)-4,4a,5,6,8,8a-hexahydro-7-oxa-3-thia-1-azanaphthalen-2-yl]amine

HRID 218000Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 218000
[N-:1]=[N+:2]=[N-:3].[Na+].[C:5]([O:9][C:10]([N:12]([C:20]1[S:29][CH2:28][C@H:27]2[C@:22]([C:30]3[S:31][CH:32]=[C:33](B4OC(C)(C)C(C)(C)O4)[CH:34]=3)([CH2:23][O:24][CH2:25][CH2:26]2)[N:21]=1)[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:11])([CH3:8])([CH3:7])[CH3:6]>CO.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[C:5]([O:9][C:10]([N:12]([C:20]1[S:29][CH2:28][C@H:27]2[C@:22]([C:30]3[S:31][CH:32]=[C:33]([N:1]=[N+:2]=[N-:3])[CH:34]=3)([CH2:23][O:24][CH2:25][CH2:26]2)[N:21]=1)[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:11])([CH3:6])([CH3:7])[CH3:8]

Komponenten

5

Edukt 2

HCID 33557Sodium AzideHCID 58406029(+/-)-N,N-di(tert-butyloxycarbonyl)-[(4aR*,8aR*)-8a-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-thiophen-2-yl]-4,4a,5,6,8,8a-hexahydro-7-oxa-3-thia-1-azanaphthalen-2-yl]amine

Produkt 1

HCID 58406041(+/-)-N,N-di(tert-butyloxycarbonyl)-[(4aR*,8aR*)-8a-(4-azidothiophen-2-yl)-4,4a,5,6,8,8a-hexahydro-7-oxa-3-thia-1-azanaphthalen-2-yl]amineAusbeute 74,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8895Cupric acetateKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

Sodium azide (177 mg) and copper (II) acetate (99.2 mg) were added to a solution of (±)-N,N-di(tert-butyloxycarbonyl)-[(4aR*,8aR*)-8a-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-thiophen-2-yl]-4,4a,5,6,8,8a-hexahydro-7-oxa-3-thia-1-azanaphthalen-2-yl]amine (790 mg) in methanol (88 ml). The mixture was stirred at room temperature overnight, and then the excess of methanol was evaporated under reduced pressure. An ammonium chloride solution was added to the residue, and the aqueous layer was with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by NH-silica gel column chromatography to obtain the title compound (503 mg).

Aufarbeitung

  1. customthe excess of methanol was evaporated under reduced pressure
  2. additionAn ammonium chloride solution was added to the residue
  3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by NH-silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-e5096ae6d217401ab14988f28bf335a2
Quelldatensatz
uspto-grants-2012_06
Patentnummer
US08198269B2

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