Dicyclohexylcarbodiimide → 2',3'-dideoxy-3'-fluoro-5'-O-[5-(N-trityl-L-valyloxymethyl)-6-stearoyloxyhexanoyl]guanosine

HRID 1170651Notes

Reaction equation

HRID 1170651 reaction equation
[C:1]([NH:20][C@H:21]([C:25]([O:27][CH2:28][CH:29]([CH2:36][O:37][C:38](=[O:56])[CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH3:55])[CH2:30][CH2:31][CH2:32][C:33]([OH:35])=[O:34])=[O:26])[CH:22]([CH3:24])[CH3:23])([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:57][C@@H:58]1[C@@H:62]([CH2:63]O)[O:61][C@@H:60]([N:65]2[C:75]3[N:74]=[C:72]([NH2:73])[NH:71][C:69](=[O:70])[C:68]=3[N:67]=[CH:66]2)[CH2:59]1.CN(C1C=CC=CN=1)C.C1CCC(N=C=NC2CCCCC2)CC1>CN(C=O)C>[F:57][C@@H:58]1[C@@H:62]([CH2:63][O:34][C:33](=[O:35])[CH2:32][CH2:31][CH2:30][CH:29]([CH2:28][O:27][C:25](=[O:26])[C@H:21]([CH:22]([CH3:24])[CH3:23])[NH:20][C:1]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)([C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH2:36][O:37][C:38](=[O:56])[CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH3:55])[O:61][C@@H:60]([N:65]2[C:75]3[N:74]=[C:72]([NH2:73])[NH:71][C:69](=[O:70])[C:68]=3[N:67]=[CH:66]2)[CH2:59]1

Participants

6

Reactant 4

HCID 10868DicyclohexylcarbodiimideHCID 218852-DimethylaminopyridineHCID 154851735-(N-trityl-L-valyloxymethyl)-6-stearoyloxyhexanoic acidHCID 1354318173'-Fluoro-2',3'-dideoxyguanosine

Product 1

HCID 1361217062',3'-dideoxy-3'-fluoro-5'-O-[5-(N-trityl-L-valyloxymethyl)-6-stearoyloxyhexanoyl]guanosine

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 5-(N-trityl-L-valyloxymethyl)-6-stearoyloxyhexanoic acid (462 mg, 0.6 mmole) and 2′,3′-dideoxy-3′-fluoroguanosine (340 mg, 1.25 mmol) in DMF (3 ml) were added dimethylaminopyridine (7 mg, 0.06 mmole), and DCC (136 mg, 0.66 mmol). The reaction was kept at room temperature overnight, and then at 40° C. for two hours. The reaction mixture was filtered through Celite and poured into dichloromethane, and washed with aqueous sodium hydrogen carbonate solution. The product 2′,3′-dideoxy-3′-fluoro-5′-O-[5-(N-trityl-L-valyloxymethyl)-6-stearoyloxyhexanoyl]guanosine was isolated by silica gel column chromatography. (93 mg)

Workup

  1. waitat 40° C. for two hours
  2. filtrationThe reaction mixture was filtered through Celite
  3. additionpoured into dichloromethane
  4. washwashed with aqueous sodium hydrogen carbonate solution

Sources & evidence

ORD record
ord-5f993ef7cd3b487c93a32ba8b0436580
Source dataset
uspto-grants-2010_11
Patent number
US07825238B2

Reaction notes

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