Potassium Phosphate, Tribasic → [3-(3,5-Difluoro-pyridin-2-yl)-4-methyl-phenyl]-[2-(1,1-dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolin-5-yl]-amine

HRID 1505065

Reaction equation

HRID 1505065 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.[F:19][C:20]1[C:21]([C:27]2[CH:28]=[C:29]([CH:31]=[CH:32][C:33]=2[CH3:34])[NH2:30])=[N:22][CH:23]=[C:24]([F:26])[CH:25]=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>[F:19][C:20]1[C:21]([C:27]2[CH:28]=[C:29]([NH:30][C:2]3[CH:11]=[CH:10][CH:9]=[C:8]4[C:3]=3[CH2:4][CH2:5][N:6]([CH:12]3[CH2:16][CH2:15][S:14](=[O:18])(=[O:17])[CH2:13]3)[CH2:7]4)[CH:31]=[CH:32][C:33]=2[CH3:34])=[N:22][CH:23]=[C:24]([F:26])[CH:25]=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 583179983-(3,5-Difluoropyridin-2-yl)-4-methylaniline

Product 1

HCID 57493333[3-(3,5-Difluoro-pyridin-2-yl)-4-methyl-phenyl]-[2-(1,1-dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolin-5-yl]-amineYield 65%

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 (50 mg, 0.15 mmol), 3-(3,5-difluoropyridin-2-yl)-4-methylaniline (33 mg, 0.15 mmol), Pd2(dba)3 (13 mg, 0.014 mmol), Xantphos (16 mg, 0.028 mmol) and K3PO4 (74 mg, 0.35 mmol) is added anhydrous dioxane (1 mL). 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 salt. The filtrate is concentrated and purified by silica gel flash chromatography to afford [3-(3,5-difluoro-pyridin-2-yl)-4-methyl-phenyl]-[2-(1,1-dioxo-tetrahydro-thiophen-3-yl)-1,2,3,4-tetrahydro-isoquinolin-5-yl]-amine as an off-white solid (45 mg, 65%). MS m/z 470.2 (M+1); 1H NMR 400 MHz (DMSO-d6) δ 8.67 (d, 1H, J=2.4 Hz), 7.39 (s, 1H), 7.22 (d, 1H, J=8.4 Hz), 7.12 (m, 2H), 7.00 (dd, 1H, J1=8.0 Hz, J2=2.4 Hz), 6.91 (d, 1H, J=2.4 Hz), 6.75 (d, 1H, J=7.2 Hz), 3.79 (d, 1H, J=19.2 Hz), 3.71 (d, 1H, J=19.2 Hz), 3.47 (m, 2H), 3.34 (m, 1H), 3.18 (m, 2H), 2.82 (m, 2H), 2.72 (m, 2H), 2.47 (m, 1H), 2.17 (m, 1H), 2.11 (s, 3H).

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 salt
  6. concentrationThe filtrate is concentrated
  7. custompurified by silica gel flash chromatography

Sources & evidence

ORD record
ord-30758e7d2d95467eb9ed6a6d713749b3
Source dataset
uspto-grants-2015_12
Patent number
US09216964B2

Linked notes

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