2,6-Di-tert-butyl-4-methylphenol → (S)-3-(tert-Butoxycarbonylamino)-1-(4-vinyl-5-isoquinolinesulfonyl)pyrrolidine

HRID 2425385Notes

Reaction equation

HRID 2425385 reaction equation
[C:1]([O:5][C:6]([NH:8][C@H:9]1[CH2:13][CH2:12][N:11]([S:14]([C:17]2[C:18]3[C:19](Br)=[CH:20][N:21]=[CH:22][C:23]=3[CH:24]=[CH:25][CH:26]=2)(=[O:16])=[O:15])[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:28](C1C=C(C)C=C(C(C)(C)C)C=1O)(C)(C)[CH3:29].C(C([Sn])=C(CCCC)CCCC)CCC>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:1]([O:5][C:6]([NH:8][C@H:9]1[CH2:13][CH2:12][N:11]([S:14]([C:17]2[C:18]3[C:19]([CH:28]=[CH2:29])=[CH:20][N:21]=[CH:22][C:23]=3[CH:24]=[CH:25][CH:26]=2)(=[O:16])=[O:15])[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 3

HCID 314042,6-Di-tert-butyl-4-methylphenolHCID 53438229Tri(butyl)vinyltinHCID 67242852(S)-3-(tert-Butoxycarbonylamino)-1-(4-bromo-5-isoquinolinesulfonyl)pyrrolidine

Product 1

HCID 67244957(S)-3-(tert-Butoxycarbonylamino)-1-(4-vinyl-5-isoquinolinesulfonyl)pyrrolidineYield 21,298.1%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

A solution of Intermediate 1a (250 mg) obtained in Example 1-1, Step A, 2,6-di(tert-butyl)-4-methylphenol (0.5 mg, Tokyo Kasei Kogyo), and tri(n-butyl)vinyltin (0.25 ml, Tokyo Kasei Kogyo) in toluene (8 ml) was added with tetrakis(triphenylphosphine)palladium(0) (13 mg, Kanto Chemicals) under a nitrogen gas atmosphere, and the mixture was refluxed by heating for 12 hours. The reaction mixture was cooled to room temperature, and then the solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (n-hexane:ethyl acetate=2:1) to obtain the title compound (195 mg).

Workup

  1. temperaturethe mixture was refluxed
  2. temperatureby heating for 12 hours
  3. customthe solvent was evaporated under reduced pressure
  4. customThe residue was purified by silica gel chromatography (n-hexane:ethyl acetate=2:1)

Sources & evidence

ORD record
ord-1d282fe57a804d37b5578273a0b5e15a
Source dataset
uspto-grants-2011_06
Patent number
US07964613B2

Reaction notes

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