Acetic Acid → HCID 9981880, Verbindung

HRID 897027

Reaktionsgleichung

Reaktionsgleichung von HRID 897027
[Cl:1][C:2]1[C:7]([N:8]2[C:17](=[O:18])[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([F:19])[CH:15]=3)[N:10]=[C:9]2[CH:20]=O)=[CH:6][CH:5]=[CH:4][N:3]=1.[N:22]1([CH2:27][C:28]2[CH:29]=[C:30]([CH:32]=[CH:33][CH:34]=2)[NH2:31])[CH2:26][CH2:25][CH2:24][CH2:23]1.C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClC(Cl)C>[Cl:1][C:2]1[C:7]([N:8]2[C:17](=[O:18])[C:16]3[C:11](=[CH:12][CH:13]=[C:14]([F:19])[CH:15]=3)[N:10]=[C:9]2[CH2:20][NH:31][C:30]2[CH:32]=[CH:33][CH:34]=[C:28]([CH2:27][N:22]3[CH2:23][CH2:24][CH2:25][CH2:26]3)[CH:29]=2)=[CH:6][CH:5]=[CH:4][N:3]=1

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 10964073-(Pyrrolidin-1-ylmethyl)anilineHCID 5049666Sodium triacetoxyborohydrideHCID 12088007HCID 12088007, Verbindung

Produkt 1

HCID 9981880HCID 9981880, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 63651,1-DichloroethaneLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

A mixture of 3-(2-chloro-pyridin-3-yl)-6-fluoro-3,4-dihydro-quinazolin-4-one-2-carboxaldehyde (0.150 g, 0.49 mmol), 3-pyrrolidin-1-ylmethylaniline (0.044 g, 0.25 mmol), and acetic acid (0.14 mL, 2.45 mmol) in dichloroethane (10 mL) was chilled to 0° C. and sodium triacetoxyborohydride (0.312 g, 1.47 mmol) was added. The reaction was stirred for 1 hour at 0° C. and then allowed to warm to ambient temperature. The reaction was quenched by addition of saturated aqueous bicarbonate and continued stirring for 30 minutes. The phases were separated and the aqueous layer was extracted with methylene chloride. The combined organic phase was washed with brine, dried over magnesium sulfate and concentrated. The residue was flash chromatographed on silica gel (45 g) with elution proceeding as follows: 10% methanol/0.5% ammonium hydroxide/chloroform (200 mL), nil; (50 mL), unweighed impurity; (25 mL), nil; (75 mL), unweighed mixed fraction; (200 mL), 0.010 g (8%) of 3-(2-chloro-pyridin-3-yl)-6-fluoro-2-[(3-pyrrolidin-1-ylmethyl-phenylamino)-methyl]-3H-quinazolin-4-one as a pale yellow solid which had: 1H NMR δ 8.60 (d, J=5 Hz, 1 H), 7.80 (t, J=5 Hz, 1 H), 7.76 (d, J=9 Hz, 1 H), 7.71 (dd, J=3, 9 Hz, 1 H), 7.58-7.50 (m, 2 H), 7.35 (dd, J=5, 8 Hz, 1 H), 7.14-7.08 (m, 2 H), 6.80 (dd, J=4, 9 Hz, 1 H), 4.44 (s, 1 H), 3.90-3.65 (m, 4 H), 2.79 (br s, 4 H), 1.90 (br s, 4 H); APCI MS m/z=464 (P+1).

Aufarbeitung

  1. temperatureto warm to ambient temperature
  2. customThe reaction was quenched by addition of saturated aqueous bicarbonate
  3. stirringcontinued stirring for 30 minutes
  4. customThe phases were separated
  5. extractionthe aqueous layer was extracted with methylene chloride
  6. washThe combined organic phase was washed with brine
  7. dry with materialdried over magnesium sulfate
  8. concentrationconcentrated
  9. customchromatographed on silica gel (45 g) with elution proceeding

Quellen und Nachweise

ORD-Eintrag
ord-1dca32f1e15d476dae110ebf69c516c0
Quelldatensatz
uspto-grants-2005_07
Patentnummer
US06921764B2

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