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Benzoyl chloride → N-{[9-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(methoxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purin-2-yl]methyl}benzamide

HRID 2268342
Notes
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Reaction equation

HRID 2268342 reaction equation
[NH2:1][CH2:2][C:3]1[N:11]=[C:10]2[C:6]([N:7]=[CH:8][N:9]2[C@H:12]2[C@H:16]([OH:17])[C@H:15]([OH:18])[C@@H:14]([CH2:19][O:20][CH3:21])[O:13]2)=[C:5]([NH:22][CH2:23][CH:24]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[N:4]=1.C(N(CC)CC)C.[C:44](Cl)(=[O:51])[C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1>O1CCCC1>[OH:17][C@@H:16]1[C@H:15]([OH:18])[C@@H:14]([CH2:19][O:20][CH3:21])[O:13][C@H:12]1[N:9]1[CH:8]=[N:7][C:6]2[C:10]1=[N:11][C:3]([CH2:2][NH:1][C:44](=[O:51])[C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1)=[N:4][C:5]=2[NH:22][CH2:23][CH:24]([C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)[C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 7412Benzoyl chlorideHCID 8471TriethylamineHCID 9897827(2R,3R,4S,5R)-2-{2-(Aminomethyl)-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl}-5-(methoxymethyl)tetrahydro-3,4-furandiol

Product 1

HCID 9808686N-{[9-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(methoxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purin-2-yl]methyl}benzamideYield 67.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

A stirred solution of (2R,3R,4S,5R)-2-{2-(aminomethyl)-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl}-5-(methoxymethyl)tetrahydro-3,4-furandiol (example 1) (110 mg, 0.22 mmol) in dry tetrahydrofuran (20 ml) was treated with triethylamine (0.1 ml, 0.72 mmol) and the mixture heated gently until all components had dissolved. The solution was then cooled to room temperature, treated with a solution of benzoyl chloride (28 mg, 0.20 mmol) in dry tetrahydrofuran (2 ml) and the mixture stirred for 1.5 hr. The solvent was removed under reduced pressure and the residue purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol (95:5), to give the product which was then triturated with a mixture of diethyl ether and pentane, filtered off and dried to afford the title compound as a solid (80 mg). MS: 595 (MH+).

Workup

  1. temperaturethe mixture heated gently until all components
  2. dissolutionhad dissolved
  3. customThe solvent was removed under reduced pressure
  4. customthe residue purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol (95:5)
  5. customto give the product which
  6. customwas then triturated with a mixture of diethyl ether and pentane
  7. filtrationfiltered off
  8. customdried

Sources & evidence

ORD record
ord-008c54d20da040039e34deeee0b6318f
Source dataset
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06326359B1

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes