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Lithium diisopropylamide → HCID 178451568, Verbindung

HRID 1909064
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1909064
[C:1]([Si:5]([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)([C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)[O:6][CH:7]1[CH2:12][CH2:11][N:10]([C:13]2[N:18]=[C:17]3[N:19](CN(C)C)[CH:20]=[N:21][C:16]3=[CH:15][CH:14]=2)[CH2:9][CH2:8]1)([CH3:4])([CH3:3])[CH3:2].[C:38]([O:42][C:43]([N:45]1[C:49]2=[CH:50][N:51]=[CH:52][C:53]([C:54]3[CH:59]=[C:58]([C:60](OC)=[O:61])[CH:57]=[CH:56][C:55]=3[C:64]#[N:65])=[C:48]2[CH:47]=[CH:46]1)=[O:44])([CH3:41])([CH3:40])[CH3:39].[Li+].CC([N-]C(C)C)C>C1COCC1>[C:38]([O:42][C:43]([N:45]1[C:49]2=[CH:50][N:51]=[CH:52][C:53]([C:54]3[CH:59]=[C:58]([C:60]([C:20]4[NH:19][C:17]5=[N:18][C:13]([N:10]6[CH2:11][CH2:12][CH:7]([O:6][Si:5]([C:1]([CH3:3])([CH3:2])[CH3:4])([C:26]7[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=7)[C:32]7[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=7)[CH2:8][CH2:9]6)=[CH:14][CH:15]=[C:16]5[N:21]=4)=[O:61])[CH:57]=[CH:56][C:55]=3[C:64]#[N:65])=[C:48]2[CH:47]=[CH:46]1)=[O:44])([CH3:41])([CH3:39])[CH3:40]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 2724682Lithium diisopropylamideHCID 66599777HCID 66599777, VerbindungHCID 672864874-(2-Cyano-5-methoxycarbonyl-phenyl)-pyrrolo[2,3-c]pyridine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 178451568HCID 178451568, VerbindungAusbeute 90,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028
Tetrahydrofuran
Lösungsmittel

Versuchsvorschrift

To a solution of {5-[4-(tert-Butyl-diphenyl-silanyloxy)-piperidin-1-yl]-imidazo[4,5-b]pyridin-3-ylmethyl}-dimethyl-amine (574 mg, 1.12 mmol) and 4-(2-cyano-5-methoxycarbonyl-phenyl)-pyrrolo[2,3-c]pyridine-1-carboxylic acid tert-butyl ester (474 mg, 1.26 mmol, 1.1 eq) (Step 1 example 140) in THF (0.1M), cooled to −78° C., was slowly added 1M LDA (2 mol eq). After 1 hr, the reaction mixture was quenched with 50% acetic acid in water (0.25 vols.) at −78° C. The mixture was allowed to warm to room temperature and concentrated to remove most THF. The residue was diluted with EtOAc (20 mL) and basified with aqueous ammonium hydroxide (30%) until pH>8. The organic layer was washed with brine, dried (MgSO4) and concentrated in vacuo. The residue was then purified by trituration from Acetonitrile affording 4-(5-{5-[4-(tert-Butyl-diphenyl-silanyloxy)-piperidin-1-yl]-3H-imidazo[4,5-b]pyridine-2-carbonyl}-2-cyano-phenyl)-pyrrolo[2,3-c]pyridine-1-carboxylic acid tert-butyl ester as a red solid (900 mg, 1.01 mmol, 90%). MS ESI m/z 802.7 (M+H)+.

Aufarbeitung

  1. customthe reaction mixture was quenched with 50% acetic acid in water (0.25 vols.) at −78° C
  2. concentrationconcentrated
  3. customto remove most THF
  4. additionThe residue was diluted with EtOAc (20 mL)
  5. washThe organic layer was washed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated in vacuo
  8. customThe residue was then purified by trituration from Acetonitrile

Quellen und Nachweise

ORD-Eintrag
ord-57fbb9f259114cad8dda66771c4fffdc
Quelldatensatz
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08598217B2

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