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Tetrahydrofuran → (3R,4R)-phenyl 3-(6H-imidazo[1,5-a]pyrrolo[2,3-e]pyrazin-1-yl)-4-methylpiperidine-1-carboxylate

HRID 1969777
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1969777
Cl.[CH3:2][C@@H:3]1[CH2:8][CH2:7][NH:6][CH2:5][C@@H:4]1[C:9]1[N:13]2[C:14]3[CH:20]=[CH:19][NH:18][C:15]=3[N:16]=[CH:17][C:12]2=[CH:11][N:10]=1.C1COCC1.Cl[C:27]([O:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)=[O:28]>CC#N.CN(C1C=CN=CC=1)C.C(Cl)Cl>[C:9]1([C@@H:4]2[C@H:3]([CH3:2])[CH2:8][CH2:7][N:6]([C:27]([O:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)=[O:28])[CH2:5]2)[N:13]2[C:14]3[CH:20]=[CH:19][NH:18][C:15]=3[N:16]=[CH:17][C:12]2=[CH:11][N:10]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 3

HCID 8028TetrahydrofuranHCID 15891Phenyl chloroformateHCID 672171491-((3R,4R)-4-methylpiperidin-3-yl)-6H-imidazo[1,5-a]pyrrolo[2,3-e]pyrazine hydrochloride

Produkt 1

HCID 58557404(3R,4R)-phenyl 3-(6H-imidazo[1,5-a]pyrrolo[2,3-e]pyrazin-1-yl)-4-methylpiperidine-1-carboxylateAusbeute 12,9 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 14284
4-(Dimethylamino)pyridine
Katalysator
HCID 6342AcetonitrileLösungsmittel
HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 1-((3R,4R)-4-methylpiperidin-3-yl)-6H-imidazo[1,5-a]pyrrolo[2,3-e]pyrazine hydrochloride (0.06 g, 0.21 mmol) in MeCN (1 mL) at about 0° C. was added TEA (0.06 mL, 0.41 mmol), THF (0.6 mL) and DMAP (0.006 g, 0.050 mmol) then phenyl chloroformate (0.026 mL, 0.206 mmol) and stirred for about 1 h. The reaction mixture was warmed to ambient temperature and concd under reduced pressure. The crude residue was dissolved in DCM (3 mL) and washed with water (2 mL), dried over anhydrous MgSO4, filtered, and concd under reduced pressure. The crude residue was dissolved in DCM (5 mL) and washed with water (2 mL) and brine (2 mL), dried over anhydrous MgSO4, filtered, and concd under reduced pressure. The material was purified by RP-HPLC (Table 1, Method g) to give (3R,4R)-phenyl 3-(6H-imidazo[1,5-a]pyrrolo[2,3-e]pyrazin-1-yl)-4-methylpiperidine-1-carboxylate (0.010 g, 11%): LC/MS (Table 1, Method b) Rt=1.95 min; MS m/z 376 (M+H)+.

Aufarbeitung

  1. washwashed with water (2 mL)
  2. dry with materialdried over anhydrous MgSO4
  3. filtrationfiltered
  4. dissolutionThe crude residue was dissolved in DCM (5 mL)
  5. washwashed with water (2 mL) and brine (2 mL)
  6. dry with materialdried over anhydrous MgSO4
  7. filtrationfiltered
  8. customThe material was purified by RP-HPLC (Table 1, Method g)

Quellen und Nachweise

ORD-Eintrag
ord-ba327ee5ac854fa19a5d4a21bf91e504
Quelldatensatz
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08426411B2

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