Methanol → 2-Butoxy-8-methoxy-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-amine

HRID 562487Notes

Reaction equation

HRID 562487 reaction equation
[Na].Br[C:3]1[N:4]([CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][O:19]2)[C:5]2[C:10]([N:11]=1)=[C:9]([NH2:12])[N:8]=[C:7]([O:13][CH2:14][CH2:15][CH2:16][CH3:17])[N:6]=2.[CH3:24][OH:25]>>[CH2:14]([O:13][C:7]1[N:6]=[C:5]2[C:10]([N:11]=[C:3]([O:25][CH3:24])[N:4]2[CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][O:19]2)=[C:9]([NH2:12])[N:8]=1)[CH2:15][CH2:16][CH3:17]

Participants

4

Reactant 3

HCID 887MethanolHCID 5360545SodiumHCID 231585488-Bromo-2-butoxy-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-amine

Product 1

HCID 231585192-Butoxy-8-methoxy-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-amine

Conditions

Temperature
65 °C

Procedure

Sodium (3.7 g) was added to absolute methanol (400 ml) under a nitrogen atmosphere. To this solution was added the product from step (iii) (28.5 g) and the mixture was stirred at 65° C. for 9 hours. The mixture was concentrated in vacuo and 500 ml of water added. The aqueous phase was extracted with ethyl acetate, washed with brine and dried. The subtitle compound was obtained after crystallisation from diethyl ether. Yield 14.2 g.

Workup

  1. concentrationThe mixture was concentrated in vacuo and 500 ml of water
  2. additionadded
  3. extractionThe aqueous phase was extracted with ethyl acetate
  4. washwashed with brine
  5. customdried

Sources & evidence

ORD record
ord-43ce8542338f4d94bd8eff6af94a5ec8
Source dataset
uspto-grants-2011_11
Patent number
US08067411B2

Reaction notes

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