Sodium Carbonate → Tert-butyl 4-[4-(6-amino-5-formylpyridin-3-yl)pyrazol-1-yl]-piperidine-1-carboxylate

HRID 241408Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 241408
[NH2:1][C:2]1[C:7]([CH:8]=[O:9])=[CH:6][C:5](I)=[CH:4][N:3]=1.CC1(C)C(C)(C)OC([C:19]2[CH:20]=[N:21][N:22]([CH:24]3[CH2:29][CH2:28][N:27]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:26][CH2:25]3)[CH:23]=2)O1.C(=O)([O-])[O-].[Na+].[Na+]>CN(C)C=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:1][C:2]1[N:3]=[CH:4][C:5]([C:19]2[CH:20]=[N:21][N:22]([CH:24]3[CH2:25][CH2:26][N:27]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:28][CH2:29]3)[CH:23]=2)=[CH:6][C:7]=1[CH:8]=[O:9]

Komponenten

6

Edukt 3

HCID 10340Sodium CarbonateHCID 177501772-Amino-5-iodopyridine-3-carbaldehydeHCID 67495092Tert-butyl 4-[4-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)pyrazol-1-yl]piperidine-1-carboxylate

Produkt 1

HCID 86664806Tert-butyl 4-[4-(6-amino-5-formylpyridin-3-yl)pyrazol-1-yl]-piperidine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

150 mg (0.605 mmol) of 2-amino-5-iodopyridine-3-carbaldehyde and 413 mg (1.089 mmol) of tert-butyl 4-[4-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)pyrazol-1-yl]piperidine-1-carboxylate are dissolved in 2.3 ml of N,N-dimethylformamide in a nitrogen-filled microwave vessel, and 1.7 ml (3.4 mmol) of 2M sodium carbonate solution and 35 mg (0.030 mmol) of tetrakis(triphenylphosphine)palladium(0) are added. The reaction solution is irradiated with microwaves for 30 min at 120° C. in the Biotage SmithSynthesizer. The reaction mixture is cooled to room temperature and filtered. The filtrate is evaporated to dryness. The oily residue is purified by means of RP-HPLC, giving tert-butyl 4-[4-(6-amino-5-formylpyridin-3-yl)pyrazol-1-yl]-piperidine-1-carboxylate; HPLC-MS [M+H]+ 372.2.

Aufarbeitung

  1. additionfilled microwave vessel
  2. customThe reaction solution is irradiated with microwaves for 30 min at 120° C. in the Biotage SmithSynthesizer
  3. filtrationfiltered
  4. customThe filtrate is evaporated to dryness
  5. customThe oily residue is purified by means of RP-HPLC

Quellen und Nachweise

ORD-Eintrag
ord-22780cbc61a64bfd8fb8086c92eba15a
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08648201B2

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