Water → HCID 178500487, compound

HRID 1086163Notes

Reaction equation

HRID 1086163 reaction equation
I[N:2]1[C:7]([OH:8])=[C:6]2[CH:9]=[C:10]([NH:12][C:13](=[O:18])[C:14]([CH3:17])([CH3:16])[CH3:15])[N:11]=[C:5]2[N:4]=[CH:3]1.[C:19]([NH:25][C@H:26]([C:33]([O:35][CH3:36])=[O:34])[CH2:27][CH2:28][C:29]([O:31][CH3:32])=[O:30])(=[O:24])[CH2:20][CH2:21][C:22]#[CH:23].C(N(CC)CC)C.O>CN(C)C=O.[Cu]I>[OH:8][C:7]1[N:2]([C:23]#[C:22][CH2:21][CH2:20][C:19]([NH:25][C@H:26]([C:33]([O:35][CH3:36])=[O:34])[CH2:27][CH2:28][C:29]([O:31][CH3:32])=[O:30])=[O:24])[CH:3]=[N:4][C:5]2=[N:11][C:10]([NH:12][C:13](=[O:18])[C:14]([CH3:17])([CH3:16])[CH3:15])=[CH:9][C:6]=12

Participants

7

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 18635866HCID 18635866, compoundHCID 178418587HCID 178418587, compound

Product 1

HCID 178500487HCID 178500487, compound

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6228DimethylformamideSolvent

Procedure

To a mixture of 3.6 g (10 mmol) of well-dried 3-iodo-4-hydroxy-6-pivaloylaminopyrrolo[2,3-d]pyrimidine in 40 mL of dimethylformamide are added 4.0 g (13.19 mmol) of dimethyl N-(pent-4-ynoyl)-L-glutamate, 0.38 g of copper (I) iodide, 3 mL of triethylamine, and 1.0 g of tetrakis-(triphenylphosphine)palladium. This mixture is stirred at ambient temperatures for two hours and then poured into 500 mL of water. The solid is collected by filtration, air dried, and then refluxed in 200 mL of methanol. The mixture is cooled and the solid collected by filtration, dissolved in two liters of 10% methanol in methylene chloride, and chromatographed over silica. Initial black bands are rechromatographed and the combined colorless bands from the first and second runs are evaporated to give dimethyl N-[5-(4-hydroxy-6-pivaloylaminopyrrolo[2,3-d] pyrimidin-3-yl)pent-4-ynoyl]-L-glutamate which can be purified further by recrystallization from 50% methanol in methylene chloride.

Workup

  1. filtrationThe solid is collected by filtration, air
  2. customdried
  3. temperaturerefluxed in 200 mL of methanol
  4. temperatureThe mixture is cooled
  5. filtrationthe solid collected by filtration
  6. dissolutiondissolved in two liters of 10% methanol in methylene chloride
  7. customchromatographed over silica
  8. customInitial black bands are rechromatographed
  9. customthe combined colorless bands from the first and second runs are evaporated

Sources & evidence

ORD record
ord-8882e853ac1145baaf5a17824119a476
Source dataset
uspto-grants-1991_07
Patent number
US05028608

Reaction notes

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