Hydrochloric Acid → HCID 58190570, compound

HRID 1892319Notes

Reaction equation

HRID 1892319 reaction equation
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([CH:11]([C:13]3[C:14]([F:24])=[C:15]4[C:20](=[CH:21][C:22]=3[F:23])[N:19]=[CH:18][CH:17]=[CH:16]4)[OH:12])=[CH:9][N:10]=2)[N:7]=1.C([Sn](CCCC)(CCCC)[C:30]([O:32]CC)=[CH2:31])CCC.Cl.O>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:24][C:14]1[C:13]([CH:11]([OH:12])[C:8]2[N:6]3[N:7]=[C:2]([C:30](=[O:32])[CH3:31])[CH:3]=[CH:4][C:5]3=[N:10][CH:9]=2)=[C:22]([F:23])[CH:21]=[C:20]2[C:15]=1[CH:16]=[CH:17][CH:18]=[N:19]2

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 619414Stannane, tributyl(1-ethoxyethenyl)-HCID 58147519(6-Chloroimidazo[1,2-b]pyridazin-3-yl)(5,7-difluoroquinolin-6-yl)methanol

Product 1

HCID 58190570HCID 58190570, compoundYield 66.5%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

To a flask charged with Pd(PPh3)4 (67 mg, 0.058 mmol) under nitrogen was added a solution of (6-chloroimidazo[1,2-b]pyridazin-3-yl)(5,7-difluoroquinolin-6-yl)methanol (200 mg, 0.56 mmol) in DMF (10 mL). The system was purged with nitrogen gas three times and then tributyl-(1-ethoxy-vinyl)-stannane (0.21 mL, 0.61 mmol) was added. The temperature was increased to 100° C. and stirred overnight. Then the reaction mixture was cooled to rt, 3N HCl was added and the mixture was stirred for additional 4 h. Water was added and the product was extracted with EtOAc. The organic layers were combined, dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by column chromatography (3% to 10% MeOH in DCM) to afford 132 mg (55%) of the title compound. 1H-NMR (400 MHz, CDCl3). ppm 8.98 (dd, 1H), 8.42 (d, 1H), 8.05 (dd, 1H), 8.00 (s, 1H), 7.77 (dd, 1H), 7.68 (d, 1H), 7.48 (q, 1H), 7.03 (s, 1H), 2.72 (s, 3H). LCMS (method B): [MH]+=355, tR=2.08 min.

Workup

  1. customThe system was purged with nitrogen gas three times
  2. temperatureThen the reaction mixture was cooled to rt
  3. stirringthe mixture was stirred for additional 4 h
  4. extractionthe product was extracted with EtOAc
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by column chromatography (3% to 10% MeOH in DCM)

Sources & evidence

ORD record
ord-5a4799274c9e47ce80c3d38117ccce80
Source dataset
uspto-grants-2013_08
Patent number
US08507676B2

Reaction notes

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