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Ethylenediamine → N-(2-Aminoethyl)-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purine-2-carboxamide

HRID 10446
Notes
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Reaction equation

HRID 10446 reaction equation
[OH:1][C@@H:2]1[C@H:6]([OH:7])[C@@H:5]([CH2:8][OH:9])[O:4][C@H:3]1[N:10]1[CH:18]=[N:17][C:16]2[C:11]1=[N:12][C:13]([C:34]([O:36]C)=O)=[N:14][C:15]=2[NH:19][CH2:20][CH:21]([C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.[CH2:38]([NH2:41])[CH2:39][NH2:40]>ClCCl>[NH2:40][CH2:39][CH2:38][NH:41][C:34]([C:13]1[N:12]=[C:11]2[C:16]([N:17]=[CH:18][N:10]2[C@H:3]2[C@H:2]([OH:1])[C@H:6]([OH:7])[C@@H:5]([CH2:8][OH:9])[O:4]2)=[C:15]([NH:19][CH2:20][CH:21]([C:28]2[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=2)[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[N:14]=1)=[O:36]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 3301EthylenediamineHCID 56614351Methyl 9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purine-2-carboxylate

Product 1

HCID 60091691N-(2-Aminoethyl)-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purine-2-carboxamideYield 78.2%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Conditions

Temperature
105 °C

Procedure

A mixture of methyl 9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purine-2-carboxylate (Preparation 16) (0.52 g, 1.03 mmol) and 1,2-ethylenediamine (0.6 g, 10 mmol) was heated at 105° C. for 3 hours. The mixture was dissolved in a little dichloromethane and purified by column chromatography on silica gel eluting with dichloromethane:methanol:concentrated aqueous ammonia (85:15:1.5, by volume). After evaporation of appropriate fractions the residue was triturated with diethyl ether, filtered and dried to yield the target compound as a white solid, (0.43 g, 78%).

Workup

  1. custompurified by column chromatography on silica gel eluting with dichloromethane
  2. customAfter evaporation of appropriate fractions the residue
  3. customwas triturated with diethyl ether
  4. filtrationfiltered
  5. customdried

Sources & evidence

ORD record
ord-32838b2a0dea4bfebe8540de2786d989
Source dataset
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07094769B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes