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Diisopropylethylamine → (R)-tert-butyl 3-(3-bromo-1-trityl-1H-indazole-5-carboxamido)piperidine-1-carboxylate

HRID 1467332
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1467332
F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.[Br:25][C:26]1[C:34]2[C:29](=[CH:30][CH:31]=[C:32]([C:35]([OH:37])=O)[CH:33]=2)[N:28]([C:38]([C:51]2[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=2)([C:45]2[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=2)[C:39]2[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=2)[N:27]=1.[NH2:57][C@@H:58]1[CH2:63][CH2:62][CH2:61][N:60]([C:64]([O:66][C:67]([CH3:70])([CH3:69])[CH3:68])=[O:65])[CH2:59]1.C(N(C(C)C)CC)(C)C>CN(C=O)C>[Br:25][C:26]1[C:34]2[C:29](=[CH:30][CH:31]=[C:32]([C:35]([NH:57][C@@H:58]3[CH2:63][CH2:62][CH2:61][N:60]([C:64]([O:66][C:67]([CH3:70])([CH3:69])[CH3:68])=[O:65])[CH2:59]3)=[O:37])[CH:33]=2)[N:28]([C:38]([C:45]2[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=2)([C:39]2[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=2)[C:51]2[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=2)[N:27]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 1501974tert-butyl (3R)-3-aminopiperidine-1-carboxylateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 679965973-bromo-1-trityl-1H-indazole-5-carboxylic acid

Produkt 1

HCID 70652333
(R)-tert-butyl 3-(3-bromo-1-trityl-1H-indazole-5-carboxamido)piperidine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel2×

Versuchsvorschrift

2-(7-Aza-1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HATU) (3.1 mmol) was added to a suspension of 3-bromo-1-trityl-1H-indazole-5-carboxylic acid (1 g) in DMF (5 mL) and was stirred at room temperature for 15 minutes. A solution of (R)-tert-butyl 3-aminopiperidine-1-carboxylate (415 mg) in DMF (5 mL) was added to the reaction and followed by diisopropyl ethyl amine (DIEA) (0.72 mL). The mixture was stirred at room temperature for an additional 30 minutes. The reaction was quenched with water (50 mL) and extracted with ethyl acetate (3×100 mL). The extracts were combined, dried using anhydrous sodium sulfate, filtered, and concentrated in vacuo. The crude product was progressed to the next step without purification.

Aufarbeitung

  1. stirringThe mixture was stirred at room temperature for an additional 30 minutes
  2. customThe reaction was quenched with water (50 mL)
  3. extractionextracted with ethyl acetate (3×100 mL)
  4. customdried
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product was progressed to the next step without purification

Quellen und Nachweise

ORD-Eintrag
ord-b702b2a310fc4ecaa0a447da840a33d8
Quelldatensatz
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08999957B2

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