Water → 5-(2-benzyl-2H-indazol-6-yl)-7-(4-benzylmorpholin-2-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amine

HRID 1972818Notes

Reaction equation

HRID 1972818 reaction equation
[CH2:1]([N:8]1[CH2:13][CH2:12][O:11][CH:10]([C:14]2[N:22]3[C:17]([C:18]([NH2:23])=[N:19][CH:20]=[N:21]3)=[C:16](Br)[CH:15]=2)[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:25]([N:32]1[CH:40]=[C:39]2[C:34]([CH:35]=[C:36](B3OC(C)(C)C(C)(C)O3)[CH:37]=[CH:38]2)=[N:33]1)[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].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>[CH2:25]([N:32]1[CH:40]=[C:39]2[C:34]([CH:35]=[C:36]([C:16]3[CH:15]=[C:14]([CH:10]4[O:11][CH2:12][CH2:13][N:8]([CH2:1][C:2]5[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=5)[CH2:9]4)[N:22]4[C:17]=3[C:18]([NH2:23])=[N:19][CH:20]=[N:21]4)[CH:37]=[CH:38]2)=[N:33]1)[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1

Participants

7

Reactant 4

HCID 962WaterHCID 62657Potassium Phosphate, TribasicHCID 585293132-benzyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-IndazoleHCID 585295147-(4-Benzylmorpholin-2-yl)-5-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine

Product 1

HCID 585293425-(2-benzyl-2H-indazol-6-yl)-7-(4-benzylmorpholin-2-yl)pyrrolo[2,1-f][1,2,4]triazin-4-amineYield 43%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

A stirred, degassed mixture of 7-(4-benzylmorpholin-2-yl)-5-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine (701 mg, 1.81 mmol) and tetrakis(triphenylphosphine)palladium(0) (350 mg, 0.30 mmol) in DMF (2 mL) was stirred under N2 for 30 min at 80 C, then treated with 2-benzyl-6-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-2H-indazole (754 mg, 2.26 mmol), K3PO4 (765 mg, 3.61 mmol) and H2O (165 mg, 9 mmol). The reaction was heated (100° C.) for 1 h and then cooled to rt. The mixture was partitioned between ethyl acetate (25 mL) and MeOH (2.5 mL) and the mixture filtered through a long silica plug. After removal of the volatiles in vacuo, the residue was purified by ISCO® chromatography using a gradient of 1% to 10% MeOH in CH2Cl2 to afford 401 mg (43%) of the desired product. 1H NMR (300 MHz, DMSO-d6) δ 8.54 (s, 1 H), 7.90 (s, 1 H), 7.79 (d, 1 H, J=9 Hz), 7.57 (s, 1 H), 7.21-7.38 (m, 5 H), 7:12 (d, 1 H, J=9 Hz), 6.73 (s, 1 H), 5.65 (s, 2 H), 5.10 (dd, 1H, J=10, 2Hz), 3.88 (d, 1H, J=12 Hz), 3.69 (dd, 1H, J=10, 9 Hz), 3.57 (d, 1H, J=13 Hz), 3.51 (d, 1H, J=13 Hz), 2.97 (d, 1H, J=12 Hz), 2.17-2.28 (m, 1H), 2.67 (d, 1H, J=11 Hz), 2.36 (t, 1H, J=11 Hz); ES-MS m/z 516.3 [M+H]+, HPLC RT (min) 2.80.

Workup

  1. customA stirred, degassed
  2. temperaturecooled to rt
  3. customThe mixture was partitioned between ethyl acetate (25 mL) and MeOH (2.5 mL)
  4. filtrationthe mixture filtered through a long silica plug
  5. customAfter removal of the volatiles in vacuo
  6. customthe residue was purified by ISCO® chromatography

Sources & evidence

ORD record
ord-1a110c2f154a42048c33bbd8254900f1
Source dataset
uspto-grants-2013_04
Patent number
US08431695B2

Reaction notes

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