Isobutyryl chloride → (R)-1-(3-((2-(2-(1-hydroxyethyl)-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)azetidin-1-yl)-2-methylpropan-1-one

HRID 1946197Notes

Reaction equation

HRID 1946197 reaction equation
[NH:1]1[CH2:4][CH:3]([CH2:5][C:6]2[N:7]([CH3:33])[C:8]3[C:13]([N:14]=2)=[C:12]([N:15]2[CH2:20][CH2:19][O:18][CH2:17][CH2:16]2)[N:11]=[C:10]([N:21]2[C:25]4[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=4[N:23]=[C:22]2[C@H:30]([OH:32])[CH3:31])[N:9]=3)[CH2:2]1.CCN(C(C)C)C(C)C.[C:43](Cl)(=[O:47])[CH:44]([CH3:46])[CH3:45]>C(Cl)Cl>[OH:32][C@@H:30]([C:22]1[N:21]([C:10]2[N:9]=[C:8]3[C:13]([N:14]=[C:6]([CH2:5][CH:3]4[CH2:4][N:1]([C:43](=[O:47])[CH:44]([CH3:46])[CH3:45])[CH2:2]4)[N:7]3[CH3:33])=[C:12]([N:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)[N:11]=2)[C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=2[N:23]=1)[CH3:31]

Participants

5

Reactant 3

HCID 62325Isobutyryl chlorideHCID 81531DiisopropylethylamineHCID 59605884(R)-1-[1-(8-Azetidin-3-ylmethyl-9-methyl-6-morpholin-4-yl-9H-purin-2-yl)-1H-benzoimidazol-2-yl]ethanol

Product 1

HCID 59605381(R)-1-(3-((2-(2-(1-hydroxyethyl)-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)azetidin-1-yl)-2-methylpropan-1-oneYield 24%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-1-[1-(8-azetidin-3-ylmethyl-9-methyl-6-morpholin-4-yl-9H-purin-2-yl)-1H-benzoimidazol-2-yl]ethanol (57 mg, 0.13 mmol) in DCM (2 mL) was added DIPEA (24 μL, 0.14 mmol) and isobutyryl chloride (14 μL, 0.13 mmol) and the resulting mixture stirred at r.t. for 1 h. The reaction mixture was partitioned between DCM and H2O, the organic phase dried (phase separator) and concentrated in vacuo. The resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-8%) affording 860 (16 mg, 24%). LCMS (method I): RT 3.46 min, [M+H]+ 519.3. 1H NMR (DMSO, 400 MHz): δ 7.96-7.95 (1 H, m), 7.70-7.69 (1 H, m), 7.30-7.25 (2 H, m), 5.58-5.57 (1 H, m), 5.39 (1 H, d, J=6.34 Hz), 4.36-4.09 (4 H, brd s), 4.35 (1 H, t, J=8.22 Hz), 4.02 (1 H, t, J=8.79 Hz), 3.95-3.94 (1 H, m), 3.80-3.75 (4 H, m), 3.72 (3 H, s), 3.67 (1 H, dd, J=9.77, 5.28 Hz), 3.24-3.23 (3 H, m), 2.45-2.44 (1 H, m), 1.60 (3 H, d, J=6.49 Hz), 0.98 (3 H, d, J=1.77 Hz), 0.97 (3 H, d, J=1.79 Hz)

Workup

  1. customThe reaction mixture was partitioned between DCM and H2O
  2. customthe organic phase dried (phase separator)
  3. concentrationconcentrated in vacuo
  4. customThe resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-8%)

Sources & evidence

ORD record
ord-056af6958ea94a24b5667b66d2dd67c7
Source dataset
uspto-grants-2013_03
Patent number
US08394796B2

Reaction notes

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