Hydrochloric Acid → 1-(6-(3-Chloro-5-fluoro-4-hydroxyphenyl)-4-((6-(3-(methylamino)piperidin-1-yl)pyridin-3-yl)amino)quinolin-3-yl)ethanone trihydrochloride

HRID 2271841Notes

Reaction equation

HRID 2271841 reaction equation
[C:1]([C:4]1[CH:5]=[N:6][C:7]2[C:12]([C:13]=1[NH:14][C:15]1[CH:16]=[CH:17][C:18]([N:21]3[CH2:26][CH2:25][CH2:24][CH:23]([N:27]([CH3:35])C(=O)OC(C)(C)C)[CH2:22]3)=[N:19][CH:20]=1)=[CH:11][C:10](Br)=[CH:9][CH:8]=2)(=[O:3])[CH3:2].[Cl:37][C:38]1[CH:43]=[C:42](B2OC(C)(C)C(C)(C)O2)[CH:41]=[C:40]([F:53])[C:39]=1[OH:54].C([O-])([O-])=O.[Cs+].[Cs+].[ClH:61]>O1CCOCC1.C1COCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].O>[ClH:37].[ClH:61].[ClH:37].[Cl:37][C:38]1[CH:43]=[C:42]([C:10]2[CH:11]=[C:12]3[C:7](=[CH:8][CH:9]=2)[N:6]=[CH:5][C:4]([C:1](=[O:3])[CH3:2])=[C:13]3[NH:14][C:15]2[CH:20]=[N:19][C:18]([N:21]3[CH2:26][CH2:25][CH2:24][CH:23]([NH:27][CH3:35])[CH2:22]3)=[CH:17][CH:16]=2)[CH:41]=[C:40]([F:53])[C:39]=1[OH:54]

Participants

9

Reactant 4

HCID 313Hydrochloric Acid2×HCID 10796Cesium carbonateHCID 667160792-Chloro-6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenolHCID 86692852Tert-butyl (1-(5-((3-acetyl-6-bromoquinolin-4-yl)amino)pyridin-2-yl)piperidin-3-yl)(methyl)carbamate

Product 1

HCID 667165281-(6-(3-Chloro-5-fluoro-4-hydroxyphenyl)-4-((6-(3-(methylamino)piperidin-1-yl)pyridin-3-yl)amino)quinolin-3-yl)ethanone trihydrochlorideYield 107.6%

Reagents, catalysts & solvents 4

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

To a suspension of tert-butyl (1-(5-((3-acetyl-6-bromoquinolin-4-yl)amino)pyridin-2-yl)piperidin-3-yl)(methyl)carbamate (80 mg, 0.144 mmol), 2-chloro-6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (68 mg, 0.28 mmol) and Pd(dppf)Cl2 (11 mg, 0.015 mmol) in dioxane (4 mL) was added Cs2CO3 (1.0 M in H2O, 0.4 mL, 0.4 mmol). N2 gas was bubbled through the reaction mixture and the mixture was then heated at 80° C. for 2 h. The solution was allowed to cool to room temperature, diluted with a saturated NaHCO3 solution and extracted with ethyl acetate. The combined organic layers were dried over anhydrous sodium sulfate and concentrated. Purification by column chromatography (silica, 0-20% methanol/dichloromethane) afforded a brown solid. This solid was dissolved in THF (3 mL), water (3 mL) and HCl (6 M in water, 2 mL, 12 mmol). The reaction mixture was heated at 65° C. for 4 h, cooled to room temperature and concentrated. The resultant residue was purified by preparative HPLC (C18 silica, 10-90% acetonitrile/water with 0.05% TFA). The residue was dissolved in methanol (8 mL) and HCl (6 M in water, 1.0 mL, 6 mmol) was added. The resultant solution was concentrated to give the desired product (63.2 mg, 70%) as an orange solid. 1H NMR (500 MHz, MeOD) δ 9.28 (s, 1H), 8.29-8.19 (m, 2H), 8.04-7.96 (m, 2H), 7.78 (d, J=9.5 Hz, 1H), 7.24 (d, J=9.3 Hz, 1H), 7.13-7.06 (m, 2H), 4.46 (br s, 1H), 3.96 (d, J=13.1 Hz, 1H), 3.61 (br s, 1H), 3.48-3.37 (m, 1H), 2.82 (s, 3H), 2.80 (s, 3H), 2.28-2.24 (m, 1H), 2.02-1.94 (m, 1H), 1.88-1.70 (m, 2H). ESI MS m/z 520 [C32H32Cl2N4O2+H]+; HPLC 98.8% (AUC), tR=9.82 min.

Workup

  1. customN2 gas was bubbled through the reaction mixture
  2. temperatureto cool to room temperature
  3. additiondiluted with a saturated NaHCO3 solution
  4. extractionextracted with ethyl acetate
  5. dry with materialThe combined organic layers were dried over anhydrous sodium sulfate
  6. concentrationconcentrated
  7. customPurification by column chromatography (silica, 0-20% methanol/dichloromethane)
  8. customafforded a brown solid
  9. temperatureThe reaction mixture was heated at 65° C. for 4 h
  10. temperaturecooled to room temperature
  11. concentrationconcentrated
  12. customThe resultant residue was purified by preparative HPLC (C18 silica, 10-90% acetonitrile/water with 0.05% TFA)
  13. dissolutionThe residue was dissolved in methanol (8 mL)
  14. concentrationThe resultant solution was concentrated

Sources & evidence

ORD record
ord-0a6dae20bdbd45b391aba8392ac46966
Source dataset
uspto-grants-2015_09
Patent number
US09120749B2

Reaction notes

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