HCID 67960127, compound → HCID 67959731, compound

HRID 1529367Notes

Reaction equation

HRID 1529367 reaction equation
[C:1]([C:4]1[CH:5]=[C:6]2[C:10](=[CH:11][CH:12]=1)[N:9]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH:8]=[C:7]2I)(=[O:3])[NH2:2].C([Sn](CCCC)(CCCC)[C:26]1[N:31]=[C:30]([N:32]2[CH2:37][CH2:36][CH:35]([NH:38][C:39](=[O:45])[O:40][C:41]([CH3:44])([CH3:43])[CH3:42])[CH2:34][CH2:33]2)[CH:29]=[N:28][CH:27]=1)CCC>CN(C=O)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>[C:41]([O:40][C:39]([NH:38][CH:35]1[CH2:36][CH2:37][N:32]([C:30]2[N:31]=[C:26]([C:7]3[C:6]4[C:10](=[CH:11][CH:12]=[C:4]([C:1](=[O:3])[NH2:2])[CH:5]=4)[N:9]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH:8]=3)[CH:27]=[N:28][CH:29]=2)[CH2:33][CH2:34]1)=[O:45])([CH3:44])([CH3:42])[CH3:43]

Participants

5

Reactant 2

HCID 67960127HCID 67960127, compoundHCID 86709776HCID 86709776, compound

Product 1

HCID 67959731HCID 67959731, compoundYield 31%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of tert-butyl 5-carbamoyl-3-iodo-1H-indole-1-carboxylate (460 mg, 1.42 mmol) and tert-butyl 1-(6-(tributylstannyl)pyrazin-2-yl)piperidin-4-ylcarbamate (1d) (807 mg, 1.42 mmol) in DMF (4.6 mL) was purged with argon gas for 5 min, added Cut (405 mg, 2.13 mmol), palladium tetrakis (170 mg, 0.14 mmol) and again purged with argon gas for 5 min. The reaction mixture was stirred at 90° C. under nitrogen atmosphere for 1 h. The reaction mixture was then poured into water. The resulting precipitate was collected by filtration. The filtrate was extracted with diethyl ether. The organic layer was concentrated and combined with the above precipitate to give the crude product, which was purified by column chromatography to obtain the title compound as a brown solid (200 mg, 31%). MS (ESI, pos. ion) m/z: 537.0 (M+1).

Workup

  1. customwas purged with argon gas for 5 min
  2. customagain purged with argon gas for 5 min
  3. additionThe reaction mixture was then poured into water
  4. filtrationThe resulting precipitate was collected by filtration
  5. extractionThe filtrate was extracted with diethyl ether
  6. concentrationThe organic layer was concentrated
  7. customto give the crude product, which
  8. customwas purified by column chromatography

Sources & evidence

ORD record
ord-ec8ec0b3b65a4e5fa39b544a08893d22
Source dataset
uspto-grants-2015_07
Patent number
US09090593B2

Reaction notes

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