Potassium Phosphate, Tribasic → [2-(1,1-Dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolin-5-yl]-[3-(6-methoxy-pyridazin-3-yl)-4-methyl-phenyl]-amine

HRID 1505062

Reaction equation

HRID 1505062 reaction equation
Br[C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]([CH:12]1[CH2:16][CH2:15][S:14](=[O:18])(=[O:17])[CH2:13]1)[CH2:7]2.[CH3:19][O:20][C:21]1[N:26]=[N:25][C:24]([C:27]2[CH:28]=[C:29]([CH:31]=[CH:32][C:33]=2[CH3:34])[NH2:30])=[CH:23][CH:22]=1.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.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>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].O1CCOCC1>[O:17]=[S:14]1(=[O:18])[CH2:15][CH2:16][CH:12]([N:6]2[CH2:5][CH2:4][C:3]3[C:8](=[CH:9][CH:10]=[CH:11][C:2]=3[NH:30][C:29]3[CH:31]=[CH:32][C:33]([CH3:34])=[C:27]([C:24]4[N:25]=[N:26][C:21]([O:20][CH3:19])=[CH:22][CH:23]=4)[CH:28]=3)[CH2:7]2)[CH2:13]1

Participants

7

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 583178905-Bromo-2-(1,1-dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolineHCID 672124083-(6-Methoxypyridazin-3-yl)-4-methylaniline

Product 1

HCID 57493300[2-(1,1-Dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolin-5-yl]-[3-(6-methoxy-pyridazin-3-yl)-4-methyl-phenyl]-amine

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

To the reaction vessel containing 5-Bromo-2-(1,1-dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinoline (460 mg, 1.4 mmol), 3-(6-methoxypyridazin-3-yl)-4-methylaniline (300 mg, 1.4 mmol), Pd2(dba)3 (128 mg, 0.14 mmol), Xantphos (162 mg, 0.28 mmol) and K3PO4 (740 mg, 3.5 mmol) is added anhydrous dioxane. The vessel is flushed with nitrogen, sealed and heated to 100° C. for 15 hours. The reaction is then cooled to ambient temperature, filtered through a celite pad to remove any solids. The filtrate is concentrated and purified by silica gel flash chromatography to afford [2-(1,1-dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolin-5-yl]-[3-(6-methoxy-pyridazin-3-yl)-4-methyl-phenyl]-amine as an off-white solid. MS m/z 465.2 (M+1); 1H NMR 400 MHz (DMSO-d6) δ 7.73 (d, 1H, J=6.0 Hz), 7.32 (s, 1H), 7.27 (d, 1H, J=6.0 Hz), 7.16 (d, 1H, J=5.6 Hz), 7.04 (m, 2H), 6.95 (m, 2H), 6.69 (dd, 1H, J1=4.4 Hz, J2=2.8 Hz), 4.07 (s, 3H), 3.72 (d, 1H, J=15.0 Hz), 3.65 (d, 1H, J=15.0 Hz), 3.41 (m, 2H), 3.29 (m, 1H), 3.13 9m, 2H), 2.77 (m, 2H), 2.66 (t, 2H, J=6.0 Hz), 2.43 (m, 1H), 2.18 (s, 3H), 2.11 (m, 1H).

Workup

  1. customThe vessel is flushed with nitrogen
  2. customsealed
  3. temperatureThe reaction is then cooled to ambient temperature
  4. filtrationfiltered through a celite pad
  5. customto remove any solids
  6. concentrationThe filtrate is concentrated
  7. custompurified by silica gel flash chromatography

Sources & evidence

ORD record
ord-de65c60da5b44d19bef0db58c9597167
Source dataset
uspto-grants-2015_12
Patent number
US09216964B2

Linked notes

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