Trifluoroacetic acid methylene chloride → (S)-4-(4-aminophenylthio)-3-(7-isopropylquinazolin-4-ylamino)-N-(1-phenylethyl)benzamide

HRID 605385Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 605385
[CH:1]([C:4]1[CH:13]=[C:12]2[C:7]([C:8]([NH:14][C:15]3[CH:20]=[C:19]([C:21](=[O:31])[NH:22][C@H:23]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)[CH3:24])[CH:18]=[CH:17][C:16]=3[S:32][C:33]3[CH:38]=[CH:37][C:36]([NH:39]C(=O)OC(C)(C)C)=[CH:35][CH:34]=3)=[N:9][CH:10]=[N:11]2)=[CH:6][CH:5]=1)([CH3:3])[CH3:2].C(Cl)Cl.FC(F)(F)C(O)=O>>[NH2:39][C:36]1[CH:35]=[CH:34][C:33]([S:32][C:16]2[CH:17]=[CH:18][C:19]([C:21]([NH:22][C@H:23]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[CH3:24])=[O:31])=[CH:20][C:15]=2[NH:14][C:8]2[C:7]3[C:12](=[CH:13][C:4]([CH:1]([CH3:3])[CH3:2])=[CH:5][CH:6]=3)[N:11]=[CH:10][N:9]=2)=[CH:38][CH:37]=1

Komponenten

3

Edukt 2

HCID 21863450Trifluoroacetic acid methylene chlorideHCID 67040887(S)-tert-butyl 4-(2-(7-isopropylquinazolin-4-ylamino)-4-(1-phenylethylcarbamoyl)phenylthio)phenylcarbamate

Produkt 1

HCID 67040746(S)-4-(4-aminophenylthio)-3-(7-isopropylquinazolin-4-ylamino)-N-(1-phenylethyl)benzamideAusbeute 73 %

Versuchsvorschrift

The product of Example 431G (36 mg, 0.0568 mmol) was treated with 1:1 v/v methylene chloride/trifluoroacetic acid (3 mL) at room temperature for one hour then concentrated by rotary evaporation. The residue was dissolved in ethyl acetate (50 mL), washed with saturated aqueous sodium hydrogencarbonate (25 mL), water (25 mL), and brine (25 mL) then dried over magnesium sulfate, filtered, and concentrated by rotary evaporation. Purification by silica gel flash chromatography eluting with 3:97 methanol/methylene chloride afforded the title compound as a white solid (22 mg, 0.0412 mmol, 73%). 1H NMR (300 MHz, DMSO-D6) δ ppm 1.31 (d, J=6.99 Hz, 6 H) 1.45 (d, J=7.35 Hz, 3 H) 3.01-3.20 (m, 1 H) 5.07-5.26 (m, 1 H) 5.57 (s, 2 H) 6.61 (d, J=8.46 Hz, 2 H) 6.83 (d, J=8.46 Hz, 1H) 7.11 (d, J=8.82 Hz, 2 H) 7.17-7.43 (m, 5 H) 7.54-7.64 (m, 2 H) 7.69 (dd, J=8.46, 1.10 Hz, 1 H) 7.89 (d, J=1.47 Hz, 1 H) 8.43 (t, J=4.23 Hz, 2 H) 8.74 (d, J=7.72 Hz, 1 H) 9.88 (s, 1 H); MS (ESI+) m/z 534 (M+H)+, 1067 (2M+H); MS (ESI−) m/z 532 (M−H)−.

Aufarbeitung

  1. concentrationthen concentrated by rotary evaporation
  2. dissolutionThe residue was dissolved in ethyl acetate (50 mL)
  3. washwashed with saturated aqueous sodium hydrogencarbonate (25 mL), water (25 mL), and brine (25 mL)
  4. dry with materialthen dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated by rotary evaporation
  7. customPurification by silica gel flash chromatography
  8. washeluting with 3:97 methanol/methylene chloride

Quellen und Nachweise

ORD-Eintrag
ord-6befc63e1cb84276ae6e45638ccaedf9
Quelldatensatz
uspto-grants-2011_03
Patentnummer
US07910595B2

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