Cesium carbonate → [7-(2-Chloro-5-methoxy-phenyl)-5-methyl-benzo[1,2,4]triazin-3-yl]-[3-(4-methyl-piperazine-1-sulfonyl)-phenyl]-amine

HRID 273507Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 273507
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[CH:20]=[C:19]([CH3:21])[C:13]2[N:14]=[C:15]([NH2:18])[N:16]=[N:17][C:12]=2[CH:11]=1.Br[C:23]1[CH:24]=[C:25]([S:29]([N:32]2[CH2:37][CH2:36][N:35]([CH3:38])[CH2:34][CH2:33]2)(=[O:31])=[O:30])[CH:26]=[CH:27][CH:28]=1.C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[CH:20]=[C:19]([CH3:21])[C:13]2[N:14]=[C:15]([NH:18][C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([S:29]([N:32]4[CH2:37][CH2:36][N:35]([CH3:38])[CH2:34][CH2:33]4)(=[O:31])=[O:30])[CH:24]=3)[N:16]=[N:17][C:12]=2[CH:11]=1

Komponenten

7

Edukt 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 248227537-(2-Chloro-5-methoxyphenyl)-5-methylbenzo[e][1,2,4]triazin-3-amineHCID 294021141-(3-Bromobenzenesulfonyl)-4-methylpiperazine

Produkt 1

HCID 59837628[7-(2-Chloro-5-methoxy-phenyl)-5-methyl-benzo[1,2,4]triazin-3-yl]-[3-(4-methyl-piperazine-1-sulfonyl)-phenyl]-amine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

7-(2-chloro-5-methoxy-phenyl)-5-methyl-benzo[1,2,4]triazin-3-ylamine (0.315 mmol, 1.0 equiv), 1-(3-bromo-benzenesulfonyl)-4-methyl-piperazine (0.472 mmol, 1.5 equiv), Pd2(dba)3 (0.0315 mmol, 0.1 equiv), Cs2CO3 (0.945 mmol, 3.0 equiv), and Xantphos (0.063 mmol, 0.2 equiv) were dissolved in 10 mL of dioxane, purged of air and placed under an argon atmosphere to reflux at 100° C. for 18 h. The reaction was cooled to room temperature and filtered to remove excess Cs2CO3. The filtrate was extracted with EtOAc and washed with saturated NaHCO3 and brine, and the organics were dried (Na2SO4). The organics were removed under reduced pressure to afford brown residue which was precipitated using DCM/Et2O (1:5 v/v) to give [7-(2-chloro-5-methoxy-phenyl)-5-methyl-benzo[1,2,4]triazin-3-yl]-[3-(4-methyl-piperazine-1-sulfonyl)-phenyl]-amine, as a yellow solid (45 mg, 27% yield). 1H NMR (DMSO-d6): δ 2.12 (s, 3H), 2.37 (m, 4H), 2.71 (s, 3H), 2.95 (m, 4H), 3.83 (s, 3H), 7.06 (dd, J=8.9 Hz, J=3.1 Hz, 1H), 7.14 (d, J=3.1 Hz, 1H), 7.41 (dd, J=6.3 Hz, J=1.1 Hz, 1H), 7.54 (d, J=8.7 Hz, 1H), 7.67 (t, J=8.1 Hz, 2H), 8.06 (dd, J=7.6 Hz, J=1.6 Hz, 1H), 8.27 (d, J=1.9 Hz, 1H), 8.9 (bs, 1H). MS (ES+): m/z=540 LC retention time 2.70 min.

Aufarbeitung

  1. custompurged of air
  2. temperatureThe reaction was cooled to room temperature
  3. filtrationfiltered
  4. customto remove excess Cs2CO3
  5. extractionThe filtrate was extracted with EtOAc
  6. washwashed with saturated NaHCO3 and brine
  7. dry with materialthe organics were dried (Na2SO4)
  8. customThe organics were removed under reduced pressure
  9. customto afford brown residue which
  10. customwas precipitated

Quellen und Nachweise

ORD-Eintrag
ord-f09d1944202640cdaf4e9e12927b208d
Quelldatensatz
uspto-grants-2008_11
Patentnummer
US07456176B2

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