Hydrochloric Acid → HCID 25064929, compound

HRID 1513643Notes

Reaction equation

HRID 1513643 reaction equation
[F:1][C:2]1[CH:11]=[C:10]([C:12]2[CH:13]=[CH:14][C:15]3[N:16]([C:18]([CH2:21][O:22][C:23]4[C:32]5[C:27](=[CH:28][C:29]([O:33][CH3:34])=[CH:30][CH:31]=5)[N:26]=[CH:25][CH:24]=4)=[N:19][N:20]=3)[N:17]=2)[CH:9]=[CH:8][C:3]=1[C:4](OC)=[O:5].O.[OH-].[Li+].Cl.[CH3:39][O:40][CH2:41][CH2:42][NH2:43].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.FC1C=C(C2C=CC3N(C(COC4C5C(=CC(OC)=CC=5)N=CC=4)=NN=3)N=2)C=CC=1C(O)=O>C1COCC1.O.CO.CN(C=O)C>[F:1][C:2]1[CH:11]=[C:10]([C:12]2[CH:13]=[CH:14][C:15]3[N:16]([C:18]([CH2:21][O:22][C:23]4[C:32]5[C:27](=[CH:28][C:29]([O:33][CH3:34])=[CH:30][CH:31]=5)[N:26]=[CH:25][CH:24]=4)=[N:19][N:20]=3)[N:17]=2)[CH:9]=[CH:8][C:3]=1[C:4]([NH:43][CH2:42][CH2:41][O:40][CH3:39])=[O:5]

Participants

12

Reactant 7

HCID 313Hydrochloric AcidHCID 80182-MethoxyethylamineHCID 81531DiisopropylethylamineHCID 168937Lithium hydroxide, monohydrateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 67503070Methyl 2-fluoro-4-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)benzoateHCID 675034182-Fluoro-4-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)benzoic acid

Product 1

HCID 25064929HCID 25064929, compound

Reagents, catalysts & solvents 4

HCID 887MethanolSolventHCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
40 °C

Procedure

A mixture of methyl 2-fluoro-4-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)benzoate (0.488 g, 1.06 mmol) (prepared according to General Method A) and lithium hydroxide hydrate (0.223 g, 5.31 mmol) in THF (20 mL), water (5 mL) and MeOH (5 mL) was heated to 40° C. for 3 h. Brought to near neutral pH with 1M HCl. Concentrated. Azeotroped with MeCN (20 mL) and PhMe (20 mL). Used without further purification. A mixture of 2-methoxyethylamine (0.033 ml, 0.38 mmol), HATU (0.24 g, 0.62 mmol), Hunig's Base (0.24 ml, 1.4 mmol), 2-fluoro-4-(3-((7-methoxyquinolin-4-yloxy)methyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)benzoic acid (0.153 g, 0.34 mmol) in DMF was allowed to stir at room temperature for 1 h. Concentrated. Purified on RPHPLC. Took fractions containing product and made basic with 9% sodium carbonate. The volatiles were removed in vacuo and the product was isolated by filtration. Dried under vacuum. MS m/z=503.2 [M+1]+. Calc'd for C26H23FN6O4: 502.5.

Workup

  1. concentrationConcentrated
  2. customAzeotroped with MeCN (20 mL) and PhMe (20 mL)
  3. customUsed without further purification
  4. concentrationConcentrated
  5. customPurified on RPHPLC
  6. additionTook fractions containing product
  7. customThe volatiles were removed in vacuo
  8. customthe product was isolated by filtration
  9. customDried under vacuum

Sources & evidence

ORD record
ord-7781293c1434450395dc241930976f6f
Source dataset
uspto-grants-2012_07
Patent number
US08217177B2

Reaction notes

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