Ammonia → (2R,3R,4S,5R)-2-[2-(aminomethyl)-6-(phenethylamino)-9H-purin-9-yl]-5-(methoxymethyl)tetrahydro-3,4-furandiol

HRID 2268433Notes

Reaction equation

HRID 2268433 reaction equation
[OH:1][C@@H:2]1[C@H:6]([OH:7])[C@@H:5]([CH2:8][O:9][CH3:10])[O:4][C@H:3]1[N:11]1[CH:19]=[N:18][C:17]2[C:12]1=[N:13][C:14]([C:29]#[N:30])=[N:15][C:16]=2[NH:20][CH2:21][CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.N.[H][H]>C(O)C.[Pd]>[NH2:30][CH2:29][C:14]1[N:13]=[C:12]2[C:17]([N:18]=[CH:19][N:11]2[C@H:3]2[C@H:2]([OH:1])[C@H:6]([OH:7])[C@@H:5]([CH2:8][O:9][CH3:10])[O:4]2)=[C:16]([NH:20][CH2:21][CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[N:15]=1

Participants

6

Reactant 3

HCID 222AmmoniaHCID 599752979-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(methoxymethyl)tetrahydro-2-furanyl]-6-(phenethylamino)-9H-purine-2-carbonitrileHCID 178418361HCID 178418361, compound

Product 1

HCID 59975306(2R,3R,4S,5R)-2-[2-(aminomethyl)-6-(phenethylamino)-9H-purin-9-yl]-5-(methoxymethyl)tetrahydro-3,4-furandiolYield 58%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

A solution of 9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(methoxymethyl)tetrahydro-2-furanyl]-6-(phenethylamino)-9H-purine-2-carbonitrile (2.9 g, 7.07 mmol) (preparation 47) in ethanol (300 ml), saturated with ammonia gas, was treated with 5% palladium on charcoal (1.0 g), pressurised to 1034 kPa (150 psi) with hydrogen gas in a sealed vessel and stirred at room temperature for 48 hr. The reaction mixture was filtered through Arbocel (trade mark) and the solvent removed under reduced pressure. The residue was dissolved in dichloromethane and the solvent removed under reduced pressure to give a product that was purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol:ammonia (92:8:0.4) to give the title compound (1.7 g) as a foam. MS: 416 (MH+)

Workup

  1. filtrationThe reaction mixture was filtered through Arbocel (trade mark)
  2. customthe solvent removed under reduced pressure
  3. dissolutionThe residue was dissolved in dichloromethane
  4. customthe solvent removed under reduced pressure
  5. customto give a product that
  6. customwas purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol:ammonia (92:8:0.4)

Sources & evidence

ORD record
ord-87475b9eba264848b5866cc55928e5e2
Source dataset
uspto-grants-2001_12
Patent number
US06326359B1

Reaction notes

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