Methyl iodide → HCID 59670972, compound

HRID 559395Notes

Reaction equation

HRID 559395 reaction equation
[OH:1][C@H:2]1[C:6]2[N:7]=[CH:8][N:9]=[C:10]([N:11]3[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][C@@H:12]3[CH3:24])[C:5]=2[C@H:4]([CH3:25])[CH2:3]1.[H-].[Na+].[CH3:28]I>C1COCC1>[CH3:28][O:1][C@H:2]1[C:6]2[N:7]=[CH:8][N:9]=[C:10]([N:11]3[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][C@@H:12]3[CH3:24])[C:5]=2[C@H:4]([CH3:25])[CH2:3]1

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 59671070HCID 59671070, compound

Product 1

HCID 59670972HCID 59670972, compoundYield 55.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of (S)-tert-butyl 4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxylate (0.098 g, 0.28 mmol) in THF (10 mL) were added NaH (60%, 50 mg, 1.25 mmol) and MeI (0.08 mL, 1.28 mmol). The mixture was stirred at room temperature overnight. The solution was removed and the residue was purified by silica gel chromatography, eluting with ethyl acetate to give (S)-tert-butyl 4-((5R,7R)-7-methoxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxylate (0.056 g, 55%). 1H NMR (CDCl3, 400 MHz) δ 8.56 (s, 1H), 4.66 (m, 2H), 4.30-3.80 (m, 3H), 3.55 (s, 3H), 3.54-2.90 (m, 4H), 2.25 (m, 1H), 1.98 (m, 1H), 1.49 (s, 9H), 1.24 (d, J=12.4 Hz, 3H), 1.13 (d, J=7.2 Hz, 3H). MS (APCI+) [M+H]+363.

Workup

  1. customThe solution was removed
  2. customthe residue was purified by silica gel chromatography
  3. washeluting with ethyl acetate

Sources & evidence

ORD record
ord-75bb90dda5c24cd7ac237d47561e55c8
Source dataset
uspto-grants-2011_11
Patent number
US08063050B2

Reaction notes

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