Triethylamine → (3R)-3-[2-Benzyl-6-[(3R,4R)-3-hydroxy-4-methoxypyrrolidine-1-yl]-3-pyridyl)ethynyl-3-quinuclidinol

HRID 1359294

Reaction equation

HRID 1359294 reaction equation
[CH2:1]([C:8]1[C:13](I)=[CH:12][CH:11]=[C:10]([N:15]2[CH2:19][C@@H:18]([O:20][CH3:21])[C@H:17]([OH:22])[CH2:16]2)[N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:23]([C@:25]1([OH:33])[CH:30]2[CH2:31][CH2:32][N:27]([CH2:28][CH2:29]2)[CH2:26]1)#[CH:24].C(N(CC)CC)C>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.CN(C)C=O>[CH2:1]([C:8]1[C:13]([C:24]#[C:23][C@:25]2([OH:33])[CH:30]3[CH2:31][CH2:32][N:27]([CH2:28][CH2:29]3)[CH2:26]2)=[CH:12][CH:11]=[C:10]([N:15]2[CH2:19][C@@H:18]([O:20][CH3:21])[C@H:17]([OH:22])[CH2:16]2)[N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 946095(3R)-3-ethynyl-1-azabicyclo[2.2.2]octan-3-olHCID 113843072-Benzyl-3-iodo-6-[(3R,4R)-3-hydroxy-4-methoxypyrrolidin-1-yl]pyridine

Product 1

HCID 9845745(3R)-3-[2-Benzyl-6-[(3R,4R)-3-hydroxy-4-methoxypyrrolidine-1-yl]-3-pyridyl)ethynyl-3-quinuclidinolYield 34.8%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of 4.19 g of 2-benzyl-3-iodo-6-[(3R,4R)-3-hydroxy-4-methoxypyrrolidine-1-yl]pyridine, 1.7 g of (3R)-3-ethynyl-3-quinuclidinol, 500 mg of tetrakis(triphenylphosphine)palladium(0), 10 mg of cuprous iodide, 4.2 ml of triethylamine and 13 ml of N,N-dimethylformamide was heated under stirring in an oil bath kept at 70° C. for 3 hours in a nitrogen atmosphere. After cooling as it was, the mixture was extracted with ethyl acetate-dilute aqueous ammonia. The organic phase was washed with water and brine, dried over anhydrous magnesium sulfate and evaporated. The residue was subjected to NH-silica gel column chromatography and eluted with 20-100% ethyl acetate/hexane and then with 5% methanol/ethyl acetate, to give 1.54 g of the target compound.

Workup

  1. temperaturewas heated
  2. temperatureAfter cooling as it
  3. extractionthe mixture was extracted with ethyl acetate-dilute aqueous ammonia
  4. washThe organic phase was washed with water and brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customevaporated
  7. washeluted with 20-100% ethyl acetate/hexane

Sources & evidence

ORD record
ord-9f18e65601824ddf96c3769cfbe83f53
Source dataset
uspto-grants-2003_07
Patent number
US06599917B1

Linked notes

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