Water → 8-(4-Hydroxy-phenyl)-1-propyl-7-(2-trimethylsilanyl-ethoxymethyl)-1,7-dihydro-purin-6-one

HRID 925538Notes

Reaction equation

C([O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[N:23]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[C:22]3[C:21](=[O:32])[N:20]([CH2:33][CH2:34][CH3:35])[C:19](Cl)=[N:18][C:17]=3[N:16]=2)=[CH:11][CH:10]=1)C1C=CC=CC=1.O.C([O-])=O.[NH4+]>CN(C=O)C.[Pd]>[OH:8][C:9]1[CH:10]=[CH:11][C:12]([C:15]2[N:23]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:29])([CH3:31])[CH3:30])[C:22]3[C:21](=[O:32])[N:20]([CH2:33][CH2:34][CH3:35])[CH:19]=[N:18][C:17]=3[N:16]=2)=[CH:13][CH:14]=1

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of 8-(4-benzyloxy-phenyl)-2-chloro-1-propyl-7-(2-trimethylsilanyl-ethoxymethyl)-1,7-dihydro-purin-6-one (0.25 g, 0.00048 mol) in DMF:water (2.5 ml), 10% Pd/C (0.130 g) and ammonium formate (0.66 g, 0.010 mol) were added and refluxed at 80° C. for 2 hours. The mixture was cooled and filtered through celite bed, solvent was removed and the residue was diluted with water (10 ml), acidified with citric acid and extracted with ethyl acetate (3×10 ml). The organic layer was washed with brine (2×15 ml). It was dried over Na2SO4 and the solvent was removed to obtain pale yellow solid of 8-(4-hydroxy-phenyl)-1-propyl-7-(2-trimethylsilanyl-ethoxymethyl)-1,7-dihydro-purin-6-one (0.153 g, 80%).

Workup

temperatureThe mixture was cooled
filtrationfiltered through celite bed, solvent
customwas removed
additionthe residue was diluted with water (10 ml)
extractionextracted with ethyl acetate (3×10 ml)
washThe organic layer was washed with brine (2×15 ml)
dry with materialIt was dried over Na2SO4
customthe solvent was removed

Sources & evidence

ORD record: ord-9a8bc04a139c4cb295e991a49320c4e4
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09284316B2

Reaction notes

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