Ethyl Acetate → HCID 117861333, compound

HRID 2284787Notes

Reaction equation

HRID 2284787 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([O:8][CH3:9])[C:5](I)=[CH:4][N:3]=1.[C:11]([C@@H:13]1[CH2:18][CH2:17][CH2:16][C@H:15]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH2:14]1)#[CH:12].C(OCC)(=O)C.[Cl-].[NH4+]>CN(C)C=O.C(N(CC)CC)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[Cl:1][C:2]1[N:7]=[C:6]([O:8][CH3:9])[C:5]([C:12]#[C:11][C@@H:13]2[CH2:18][CH2:17][CH2:16][C@H:15]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:24])([CH3:23])[CH3:25])[CH2:14]2)=[CH:4][N:3]=1

Participants

9

Reactant 4

HCID 8857Ethyl AcetateHCID 25517Ammonium ChlorideHCID 151888882-Chloro-5-iodo-4-methoxypyrimidineHCID 90051794tert-butyl ((1S,3R)-3-ethynylcyclohexyl)carbamate

Product 1

HCID 117861333HCID 117861333, compoundYield 86.4%

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To a solution of 2-chloro-5-iodo-4-methoxypyrimidine (Q1, 101 mg), tert-butyl ((1S,3R)-3-ethynylcyclohexyl)carbamate (P0, 100 mg), bis(triphenylphosphine)palladium(II) dichloride (26 mg) and copper(I) iodide (14 mg) in N,N-dimethylformamide (3 mL), triethylamine (258 μL) was added at room temperature, and the mixture was stirred at the same temperature for 1 hour. To the reaction mixture, ethyl acetate and saturated aqueous ammonium chloride were added. The organic layer was separated, washed successively with water and saturated aqueous sodium chloride, and then dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent, 88 to 50% hexane in ethyl acetate) to obtain tert-butyl ((1S,3R)-3-((2-chloro-4-methoxypyrimidin-5-yl)ethynyl)cyclohexyl)carbamate (Q2, 118 mg).

Workup

  1. customThe organic layer was separated
  2. washwashed successively with water and saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (eluent, 88 to 50% hexane in ethyl acetate)

Sources & evidence

ORD record
ord-2969d906fae1443cbb5b8aeee917db53
Source dataset
uspto-grants-2015_09
Patent number
US09145415B2

Reaction notes

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