Water → 3-Cyclobutyl-1-(2-pyridin-2-ylquinolin-7-yl)-imidazo[1,5-a]pyrazin-8-ylamine

HRID 1028754Notes

Reaction equation

HRID 1028754 reaction equation
[CH:1]1([C:5]2[N:9]3[CH:10]=[CH:11][N:12]=[C:13]([NH2:14])[C:8]3=[C:7](I)[N:6]=2)[CH2:4][CH2:3][CH2:2]1.[N:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[C:22]1[CH:31]=[CH:30][C:29]2[C:24](=[CH:25][C:26](B3OC(C)(C)C(C)(C)O3)=[CH:27][CH:28]=2)[N:23]=1.C([O-])([O-])=O.[Na+].[Na+].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>[CH:1]1([C:5]2[N:9]3[CH:10]=[CH:11][N:12]=[C:13]([NH2:14])[C:8]3=[C:7]([C:26]3[CH:25]=[C:24]4[C:29]([CH:30]=[CH:31][C:22]([C:17]5[CH:18]=[CH:19][CH:20]=[CH:21][N:16]=5)=[N:23]4)=[CH:28][CH:27]=3)[N:6]=2)[CH2:4][CH2:3][CH2:2]1

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 426093653-Cyclobutyl-1-iodoimidazo[1,5-a]pyrazin-8-amineHCID 576810172-Pyridin-2-yl-7-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-quinoline

Product 1

HCID 112693693-Cyclobutyl-1-(2-pyridin-2-ylquinolin-7-yl)-imidazo[1,5-a]pyrazin-8-ylamine

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

The mixture of 3-cyclobutyl-1-iodoimidazo[1,5-a]pyrazin-8-ylamine (62.8 mg 0.200 mmol), 2-pyridin-2-yl-7-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-quinoline (79.1 mg, 1.2 eq.), Pd(PPh3)4 (14.0 mg, 6% eq.) and Na2CO3 (53.0 mg, 2.5 eq.) in DMF (5 ml)/H2O (1 ml) was flushed with N2 for 30 min at rt and heated at 80° C. for 16 h under N2. After that time, the reaction mixture was treated with H2O (20 ml), and was then extracted with CH2Cl2 (2×25 ml). The extracts were washed with H2O (2×20 ml), and dried over MgSO4. After the solid was filtered off and the solvent was removed in vacuo, the crude yellow oil (105 mg) was purified by MS directed purification system to obtain a yellow solid of 3-cyclobutyl-1-(2-pyridin-2-ylquinolin-7-yl)-imidazo[1,5-a]pyrazin-8-ylamine; 1H NMR (CDCl3, 400 MHz) δ 2.05-2.09 (m, 1H), 2.15-2.22 (m, 1H), 2.48-2.56 (m, 2H), 2.62-2.72 (m, 2H), 3.85 (quintet, 1H, J=8.4 Hz), 5.27 (s, 2H), 7.09-7.10 (d, 1H, J=4.8 Hz), 7.15-7.16 (d, 1H, J=4.8 Hz), 7.36-7.39 (m, 1H), 7.86-7.90 (m, 1H), 7.97 (m, 2H), 8.31-8.33 (d, 1H, J=8.8 Hz), 8.43 (s, 1H), 8.59-8.61 (d, 1H, J=8.8 Hz), 8.67-8.69 (d, 1H, J=7.6 Hz), 8.75-8.76 (d, 1H, J=4.0 Hz); MS (ES+): 393.4 (M+1), tR(polar-5 min)=2.2 min.

Workup

  1. customwas flushed with N2 for 30 min at rt
  2. additionAfter that time, the reaction mixture was treated with H2O (20 ml)
  3. extractionwas then extracted with CH2Cl2 (2×25 ml)
  4. washThe extracts were washed with H2O (2×20 ml)
  5. dry with materialdried over MgSO4
  6. filtrationAfter the solid was filtered off
  7. customthe solvent was removed in vacuo
  8. customthe crude yellow oil (105 mg) was purified by MS
  9. custompurification system

Sources & evidence

ORD record
ord-f67edca74e1542ff8c9746235c8ef652
Source dataset
uspto-grants-2014_05
Patent number
US08735405B2

Reaction notes

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