8-Bromoimidazo[1,5-a]pyridine → 2-(1-((2-(imidazo[1,5-a]pyridin-8-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)piperidin-4-yl)propan-2-ol

HRID 1945798Notes

Reaction equation

HRID 1945798 reaction equation
[CH3:1][N:2]1[C:10]([CH2:11][N:12]2[CH2:17][CH2:16][CH:15]([C:18]([OH:21])([CH3:20])[CH3:19])[CH2:14][CH2:13]2)=[N:9][C:8]2[C:3]1=[N:4][C:5]([Sn](CCCC)(CCCC)CCCC)=[N:6][C:7]=2[N:22]1[CH2:27][CH2:26][O:25][CH2:24][CH2:23]1.Br[C:42]1[C:43]2[N:44]([CH:48]=[N:49][CH:50]=2)[CH:45]=[CH:46][CH:47]=1>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.S1C=CC=C1C([O-])=O.[Cu+]>[CH:50]1[N:49]=[CH:48][N:44]2[CH:45]=[CH:46][CH:47]=[C:42]([C:5]3[N:4]=[C:3]4[C:8]([N:9]=[C:10]([CH2:11][N:12]5[CH2:13][CH2:14][CH:15]([C:18]([OH:21])([CH3:20])[CH3:19])[CH2:16][CH2:17]5)[N:2]4[CH3:1])=[C:7]([N:22]4[CH2:27][CH2:26][O:25][CH2:24][CH2:23]4)[N:6]=3)[C:43]=12

Participants

6

Reactant 2

HCID 594686818-Bromoimidazo[1,5-a]pyridineHCID 596055362-(1-((9-Methyl-6-morpholino-2-(tributylstannyl)-9H-purin-8-yl)methyl)piperidin-4-yl)propan-2-ol

Product 1

HCID 596056982-(1-((2-(imidazo[1,5-a]pyridin-8-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)piperidin-4-yl)propan-2-olYield 59.1%

Reagents, catalysts & solvents 3

HCID 11194830Cuprous 2-thiophenecarboxylateCatalystHCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
150 °C

Procedure

A mixture of 2-[1-(9-methyl-6-morpholin-4-yl-2-(tributylstannanyl)-9H-purin-8-ylmethyl)piperidin-4-yl]propan-2-ol (135 mg, 0.20 mmol), 8-bromoimidazo[1,5-a]pyridine (44 mg, 0.22 mmol), Pd(PPh3)4 (24 mg, 10 mol %) and copper(I)-thiophene-2-carboxylate (8 mg, 20 mol %) in dioxane (2 mL) was purged with argon gas then heated at 150° C., for 20 min, in a microwave reactor. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge, washed with MeOH then the desired product eluted with 2 M NH3 in MeOH. The resulting residue was purified by column chromatography (Si—PCC, 0-10% MeOH in DCM) to give 222 as a yellow solid (58 mg, 58%). LCMS (Method G): RT=4.86 min, [M+H]+ 491.4. 1H NMR (400 MHz, CHCl3-d): δ 8.42 (s, 1 H), 8.19 (s, 1 H), 8.02 (d, J=6.9 Hz, 1 H), 7.95 (dd, J=6.9, 0.9 Hz, 1 H), 6.74-6.67 (m, 1 H), 4.38 (m, 4 H), 3.96 (s, 3 H), 3.91-3.87 (m, 4 H), 3.80-3.66 (m, 2 H), 2.97 (d, J=11.0 Hz, 2 H), 2.22-1.99 (m, 2 H), 1.75 (d, J=11.0 Hz, 2 H), 1.44-1.26 (m, 4 H), 1.20-1.17 (s, 6 H)

Workup

  1. customwas purged with argon gas
  2. washwashed with MeOH
  3. washthe desired product eluted with 2 M NH3 in MeOH
  4. customThe resulting residue was purified by column chromatography (Si—PCC, 0-10% MeOH in DCM)

Sources & evidence

ORD record
ord-57bd4e69858b4564bde9097769a89f00
Source dataset
uspto-grants-2013_03
Patent number
US08394796B2

Reaction notes

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