Methanesulfonyl chloride → 3-(2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)-1-(methylsulfonyl)piperidin-3-ol

HRID 1923342Notes

Reaction equation

HRID 1923342 reaction equation
Cl.Cl.[CH2:3]([C:5]1[N:9]([C:10]2[N:18]=[C:17]3[C:13]([N:14]=[C:15]([C:20]4([OH:26])[CH2:25][CH2:24][CH2:23][NH:22][CH2:21]4)[N:16]3[CH3:19])=[C:12]([N:27]3[CH2:32][CH2:31][O:30][CH2:29][CH2:28]3)[N:11]=2)[C:8]2[CH:33]=[CH:34][CH:35]=[CH:36][C:7]=2[N:6]=1)[CH3:4].CCN(C(C)C)C(C)C.[CH3:46][S:47](Cl)(=[O:49])=[O:48]>C1COCC1>[CH2:3]([C:5]1[N:9]([C:10]2[N:18]=[C:17]3[C:13]([N:14]=[C:15]([C:20]4([OH:26])[CH2:25][CH2:24][CH2:23][N:22]([S:47]([CH3:46])(=[O:49])=[O:48])[CH2:21]4)[N:16]3[CH3:19])=[C:12]([N:27]3[CH2:28][CH2:29][O:30][CH2:31][CH2:32]3)[N:11]=2)[C:8]2[CH:33]=[CH:34][CH:35]=[CH:36][C:7]=2[N:6]=1)[CH3:4]

Participants

5

Reactant 3

HCID 31297Methanesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 674921803-[2-(2-Ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purin-8-yl]piperidin-3-ol dihydrochloride

Product 1

HCID 596056373-(2-(2-ethyl-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)-1-(methylsulfonyl)piperidin-3-olYield 44.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 3-[2-(2-ethylbenzoimidazol-1-yl)-9-methyl-6-morpholin-4-yl-9H-purin-8-yl]piperidin-3-ol dihydrochloride from Example 746 (150 mg, 0.28 mmol) and DIPEA (192 μL, 1.12 mmol) in THF (3 mL) was stirred for 5 min before the addition of methanesulfonyl chloride (22 μL, 0.28 mmol). The resulting mixture was stirred at r.t. for 4 h then partitioned between H2O and DCM. The organic phase was washed with brine, then dried (Na2SO4) and concentrated in vacuo. The resulting residue was purified by column chromatography (Si-PCC, MeOH:EtOAc, 0-20%) affording 765 (67 mg, 44%). LCMS (method I): RT 3.30 min, [M+H]+ 541.2. 1H NMR (DMSO, 400 MHz): δ 8.02-8.01 (1 H, m), 7.64-7.64 (1 H, m), 7.25-7.24 (2 H, m), 6.05 (1 H, s), 4.26 (4 H, brd s), 3.96 (3 H, s), 3.78 (4 H, t, J=4.60 Hz), 3.61 (2 H, s), 3.44-3.41 (1 H, m), 3.28-3.26 (2 H, m), 3.06-3.03 (1 H, m), 2.95 (3 H, s), 2.17-2.14 (1 H, m), 2.09-1.92 (2 H, m), 1.80-1.70 (1 H, m), 1.33 (3 H, t, J=7.43 Hz)

Workup

  1. customthen partitioned between H2O and DCM
  2. washThe organic phase was washed with brine
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated in vacuo
  5. customThe resulting residue was purified by column chromatography (Si-PCC, MeOH:EtOAc, 0-20%)

Sources & evidence

ORD record
ord-70cd060e37724dd0a983e80fb5a7be70
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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