Sodium triacetoxyborohydride → N,N-dimethyl-1-((9-methyl-2-(2-methyl-1H-benzo[d]imidazol-1-yl)-6-morpholino-9H-purin-8-yl)methyl)azetidine-3-carboxamide

HRID 1945915Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1945915
[CH3:1][N:2]1[C:10]([CH:11]=O)=[N:9][C:8]2[C:3]1=[N:4][C:5]([N:19]1[C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=3[N:21]=[C:20]1[CH3:28])=[N:6][C:7]=2[N:13]1[CH2:18][CH2:17][O:16][CH2:15][CH2:14]1.Cl.[CH3:30][N:31]([CH3:38])[C:32]([CH:34]1[CH2:37][NH:36][CH2:35]1)=[O:33].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH3:30][N:31]([CH3:38])[C:32]([CH:34]1[CH2:37][N:36]([CH2:11][C:10]2[N:2]([CH3:1])[C:3]3[C:8]([N:9]=2)=[C:7]([N:13]2[CH2:14][CH2:15][O:16][CH2:17][CH2:18]2)[N:6]=[C:5]([N:19]2[C:23]4[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=4[N:21]=[C:20]2[CH3:28])[N:4]=3)[CH2:35]1)=[O:33]

Komponenten

5

Edukt 3

HCID 5049666Sodium triacetoxyborohydrideHCID 53308702N,N-dimethylazetidine-3-carboxamide hydrochlorideHCID 596054202-(2-methylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde

Produkt 1

HCID 59606049N,N-dimethyl-1-((9-methyl-2-(2-methyl-1H-benzo[d]imidazol-1-yl)-6-morpholino-9H-purin-8-yl)methyl)azetidine-3-carboxamideAusbeute 64 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 111,2-DichloroethaneLösungsmittel

Versuchsvorschrift

A solution of 9-methyl-2-(2-methylbenzoimidazol-1-yl)-6-morpholin-4-yl-9H-purine-8-carbaldehyde (100 mg, 0.27 mmol) and azetidine-3-carboxylic acid dimethylamide hydrochloride salt (53 mg, 0.32 mmol) in DCE (4 mL) was stirred at ambient temperature for 1 h. Sodium triacetoxyborohydride (86 mg, 0.41 mmol) was added and the mixture stirred for 18 h, then loaded onto an Isolute® SCX-2 cartridge (10 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30) to afford 363 as a white solid (83 mg, 64%). LCMS (Method G): RT=5.23 min, M+H+=490. 1H NMR (CDCl3, 400 MHz) δ 8.08 (m, 1 H); 7.70 (m, 1 H); 7.28 (m, 2 H); 4.35 (m, 4 H); 3.89-3.82 (m, 9 H); 3.69-3.62 (m, 2 H); 3.57-3.46 (m, 3 H); 2.96 (s, 3 H); 2.93 (s, 3 H) and 2.90 (s, 3 H)

Aufarbeitung

  1. washThe cartridge was then washed with methanol
  2. washthe desired product was subsequently eluted
  3. customThe product was collected
  4. concentrationconcentrated in vacuo
  5. customThe resultant residue was purified by flash chromatography (Si—PPC, EtOAc:MeOH; gradient from 100:0 to 70:30)

Quellen und Nachweise

ORD-Eintrag
ord-f5c17289f6104cca81597b7c646ca8e8
Quelldatensatz
uspto-grants-2013_03
Patentnummer
US08394796B2

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