2-Methoxyethanol → Ethyl 1-[5-[2-(3-ethyl-5-methyl-2-oxo-1,3,5-triazinan-1-yl)-7-(2-methoxyethoxymethyl)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate

HRID 712324Notes

Reaction equation

HRID 712324 reaction equation
[CH2:1]([N:3]1[CH2:8][N:7]([CH3:9])[CH2:6][N:5]([C:10]2[S:11][C:12]3[C:18]([CH2:19]I)=[CH:17][C:16]([C:21]4[CH:22]=[N:23][C:24]([N:27]5[CH2:32][CH2:31][C:30]([CH3:38])([C:33]([O:35][CH2:36][CH3:37])=[O:34])[CH2:29][CH2:28]5)=[N:25][CH:26]=4)=[CH:15][C:13]=3[N:14]=2)[C:4]1=[O:39])[CH3:2].[CH3:40][O:41][CH2:42][CH2:43][OH:44].[H-].[Na+]>C1COCC1.CCOC(C)=O>[CH2:1]([N:3]1[CH2:8][N:7]([CH3:9])[CH2:6][N:5]([C:10]2[S:11][C:12]3[C:18]([CH2:19][O:44][CH2:43][CH2:42][O:41][CH3:40])=[CH:17][C:16]([C:21]4[CH:22]=[N:23][C:24]([N:27]5[CH2:32][CH2:31][C:30]([CH3:38])([C:33]([O:35][CH2:36][CH3:37])=[O:34])[CH2:29][CH2:28]5)=[N:25][CH:26]=4)=[CH:15][C:13]=3[N:14]=2)[C:4]1=[O:39])[CH3:2]

Participants

6

Reactant 3

HCID 80192-MethoxyethanolHCID 24758Sodium hydrideHCID 66977298Ethyl 1-[5-[2-(3-ethyl-5-methyl-2-oxo-1,3,5-triazinan-1-yl)-7-(iodomethyl)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate

Product 1

HCID 66977375Ethyl 1-[5-[2-(3-ethyl-5-methyl-2-oxo-1,3,5-triazinan-1-yl)-7-(2-methoxyethoxymethyl)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylateYield 58.3%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

Ethyl 1-[5-[2-(3-ethyl-5-methyl-2-oxo-1,3,5-triazinan-1-yl)-7-(iodomethyl)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate (160 mg, 0.241 mmol) and 2-methoxyethanol (95 μL, 1.21 mmol) were dissolved in THF (10 mL). Sodium hydride (96 mg, 2.41 mmol) was added portion-wise and the mixture stirred under argon at rt for 1 h. The mixture was then diluted with EtOAc (50 mL), carefully quenched with saturated aqueous NH4Cl, washed with water, brine and separated. The organic fraction was dried (Na2SO4), concentrated under reduced pressure and the resulting solid residue purified by flash column chromatography (40 g GraceResolv, silica cartridge) eluting with 50-100% EtOAc/heptane to afford the desired compound (86 mg, 58%) as a colourless resin. MS: 612.16 [M+H]+.

Workup

  1. customcarefully quenched with saturated aqueous NH4Cl
  2. washwashed with water, brine
  3. customseparated
  4. dry with materialThe organic fraction was dried (Na2SO4)
  5. concentrationconcentrated under reduced pressure
  6. customthe resulting solid residue purified by flash column chromatography (40 g GraceResolv, silica cartridge)
  7. washeluting with 50-100% EtOAc/heptane

Sources & evidence

ORD record
ord-e09d8b59ff41485b86159d646449fc0a
Source dataset
uspto-grants-2015_11
Patent number
US09181234B2

Reaction notes

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