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Sodium Carbonate → 5-(7-Methyl-4-morpholino-6,7-dihydro-[1,4]dioxino[2,3-d]pyrimidin-2-yl)pyrimidin-2-amine

HRID 528461
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 528461
Cl[C:2]1[N:3]=[C:4]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:5]2[O:11][CH2:10][CH:9]([CH3:12])[O:8][C:6]=2[N:7]=1.CC1(C)C(C)(C)OB([C:27]2[CH:28]=[N:29][C:30]([NH2:33])=[N:31][CH:32]=2)O1.C(=O)([O-])[O-].[Na+].[Na+]>C(#N)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:12][CH:9]1[O:8][C:6]2[N:7]=[C:2]([C:27]3[CH:28]=[N:29][C:30]([NH2:33])=[N:31][CH:32]=3)[N:3]=[C:4]([N:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)[C:5]=2[O:11][CH2:10]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 10340Sodium CarbonateHCID 177502122-Aminopyrimidine-5-boronic acid, pinacol esterHCID 867117462-Chloro-7-methyl-4-morpholin-4-yl-6,7-dihydro-[1,4]dioxino[2,3-d]pyrimidine

Produkt 1

HCID 734270385-(7-Methyl-4-morpholino-6,7-dihydro-[1,4]dioxino[2,3-d]pyrimidin-2-yl)pyrimidin-2-amine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476
HCID 178418476, Verbindung
Katalysator
HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
140 °C

Versuchsvorschrift

A mixture of 2-chloro-7-methyl-4-morpholin-4-yl-6,7-dihydro-[1,4]dioxino[2,3-d]pyrimidine (99 mg, 0.36 mmol), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrimidin-2-ylamine (97 mg, 0.44 mmol), Pd(PPh3)2Cl2 (28 mg, 0.04 mmol) and sodium carbonate (1.2 mL, 1.20 mmol, 1M aqueous solution) in acetonitrile (1.2 mL) was degassed then heated at 140° C. for 25 minutes using microwave irradiation. The reaction mixture was filtered, flushing with ethyl acetate. The filtrate phases were separated and the aqueous layer extracted with ethyl acetate. The combined organic extracts were dried (Na2SO4) and concentrated in vacuo. The resulting residue was purified by column chromatography (SiO2, gradient 0-4% methanol in DCM) then triturated with diethyl ether affording 103 as a white solid (12 mg, 11%). LCMS: RT=3.06 min, [M+H]+=331. 1H NMR (400 MHz, DMSO): δ 8.90 (2H, s), 7.01 (2H, s), 4.57-4.47 (1H, m), 4.36 (1H, dd, J=11.41, 2.34 Hz), 3.82 (1H, dd, J=11.43, 7.60 Hz), 3.77-3.61 (8H, m), 1.34 (3H, d, J=6.44 Hz)

Aufarbeitung

  1. customwas degassed
  2. custommicrowave irradiation
  3. filtrationThe reaction mixture was filtered
  4. customflushing with ethyl acetate
  5. customThe filtrate phases were separated
  6. extractionthe aqueous layer extracted with ethyl acetate
  7. dry with materialThe combined organic extracts were dried (Na2SO4)
  8. concentrationconcentrated in vacuo
  9. customThe resulting residue was purified by column chromatography (SiO2, gradient 0-4% methanol in DCM)
  10. customthen triturated with diethyl ether affording 103 as a white solid (12 mg, 11%)

Quellen und Nachweise

ORD-Eintrag
ord-687a77488b554046a93fce80f8611219
Quelldatensatz
uspto-grants-2016_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09346817B2

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