Potassium Phosphate, Tribasic → tert-butyl 4-(4-amino-6-(3-(pyrrolidin-1-yl)propyl)pyrrolo[2,1-f][1,2,4]triazin-7-yl)-5,6-dihydropyridine-1(2H)-carboxylate

HRID 1615467Notes

Reaction equation

HRID 1615467 reaction equation
Br[C:2]1[N:10]2[C:5]([C:6]([NH2:11])=[N:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[CH2:12][CH2:13][CH2:14][N:15]1[CH2:19][CH2:18][CH2:17][CH2:16]1.CC1(C)C(C)(C)OB([C:28]2[CH2:33][CH2:32][N:31]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:30][CH:29]=2)O1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.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>[NH2:11][C:6]1[C:5]2=[CH:4][C:3]([CH2:12][CH2:13][CH2:14][N:15]3[CH2:19][CH2:18][CH2:17][CH2:16]3)=[C:2]([C:28]3[CH2:33][CH2:32][N:31]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:30][CH:29]=3)[N:10]2[N:9]=[CH:8][N:7]=1

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 666123207-Bromo-6-(3-(pyrrolidin-1-yl)propyl)pyrrolo[2,1-f][1,2,4]triazin-4-amine

Product 1

HCID 66601711tert-butyl 4-(4-amino-6-(3-(pyrrolidin-1-yl)propyl)pyrrolo[2,1-f][1,2,4]triazin-7-yl)-5,6-dihydropyridine-1(2H)-carboxylateYield 73.7%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

To a solution of the compound (135 mg, 0.42 mmol) prepared in Example 13, tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (194 mg, 0.63 mmol), potassium phosphate (2N, 1 mL, 2.0 mmol), Pd(PPh3)4 (11 mg, 0.01 mmol) in dioxane (3 mL) was deoxygenated by nitrogen gas for 5 minutes, and the reactor was sealed, heated at 90° C. for 20 hours. The mixture was concentrated, extracted with DCM and sodium hydroxide (1N). The organic layer was dried, concentrated, and the crude product was purified by prep TLC using 5% methanol in DCM (with 1% ammonium hydroxide) to obtain the title compound (132 mg) having the following physical data.

Workup

  1. customthe reactor was sealed
  2. concentrationThe mixture was concentrated
  3. extractionextracted with DCM and sodium hydroxide (1N)
  4. customThe organic layer was dried
  5. concentrationconcentrated
  6. customthe crude product was purified by prep TLC

Sources & evidence

ORD record
ord-d1ebbaae2d654fa1a8463d09dcd1dc8e
Source dataset
uspto-grants-2014_07
Patent number
US08765754B2

Reaction notes

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