Potassium Carbonate → (R)-tert-Butyl 4-fluoro-2-(4-(8-fluorochroman-4-ylamino)-5-nitropyrimidin-2-ylamino)phenylcarbamate

HRID 1363170Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1363170
Cl.[F:2][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[O:11][CH2:10][CH2:9][C@H:8]2[NH2:13].C(=O)([O-])[O-].[K+].[K+].[F:20][C:21]1[CH:26]=[CH:25][C:24]([NH:27][C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[C:23]([NH:35][C:36]2[N:41]=[C:40](SC#N)[C:39]([N+:45]([O-:47])=[O:46])=[CH:38][N:37]=2)[CH:22]=1>CS(C)=O.C(#N)C>[F:20][C:21]1[CH:26]=[CH:25][C:24]([NH:27][C:28](=[O:34])[O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[C:23]([NH:35][C:36]2[N:37]=[C:38]([NH:13][C@H:8]3[C:7]4[C:12](=[C:3]([F:2])[CH:4]=[CH:5][CH:6]=4)[O:11][CH2:10][CH2:9]3)[C:39]([N+:45]([O-:47])=[O:46])=[CH:40][N:41]=2)[CH:22]=1

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 52911303(R)-8-fluorochroman-4-amine hydrochlorideHCID 59704889tert-Butyl 4-fluoro-2-(5-nitro-4-thiocyanatopyrimidin-2-ylamino)phenylcarbamate

Produkt 1

HCID 66970500(R)-tert-Butyl 4-fluoro-2-(4-(8-fluorochroman-4-ylamino)-5-nitropyrimidin-2-ylamino)phenylcarbamateAusbeute 83 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 679Dimethyl SulfoxideLösungsmittelHCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

A solution of the (R)-8-fluorochroman-4-amine hydrochloride (104 mg) in DMSO (2 mL) and potassium carbonate (141 mg) were added to a stirred solution of tert-butyl 4-fluoro-2-(5-nitro-4-thiocyanatopyrimidin-2-ylamino)phenylcarbamate (140 mg) in ACN (10 mL). The mixture was stirred for 15 hr at room temperature then partitioned between brine and EtOAc and separated. The aq. layer was washed with additional EtOAc, the combined organics were evaporated and purified via column chromatography, elution with 20-30% EtOAc/H gave the titled product in 83% yield. 1H-NMR (300 MHz, CDCl3) δ 9.1 (s, 1H), 8.7 (m, 1H), 8.2 (br s, 1H), 7.7 (m, 1H), 7.3 (m, 1H), 7.3-6.8 (m, 4H), 6.5 (s, 1H), 5.5 (br s, 1H), 4.4 (m 2H), 2.4 (m, 1H), 2.2 (m, 1H), 1.5 (s, 9H); MH+=515, 459 (-tBu).

Aufarbeitung

  1. customthen partitioned between brine and EtOAc
  2. customseparated
  3. washThe aq. layer was washed with additional EtOAc
  4. customthe combined organics were evaporated
  5. custompurified via column chromatography, elution with 20-30% EtOAc/H

Quellen und Nachweise

ORD-Eintrag
ord-f6607f7f376146b69f700cdc31060f6f
Quelldatensatz
uspto-grants-2011_02
Patentnummer
US07884109B2

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