4-Methylmorpholine → 2-[4-[(Cyclopentylamino)carbonyl]-1H-pyrazol-1-yl]-Adenosine

HRID 478137Notes

Reaction equation

HRID 478137 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]([N:20]1[CH:24]=[C:23]([C:25]([NH2:27])=[O:26])[CH:22]=[N:21]1)=[N:14][C:15]=2[NH2:19].CN(C(ON1N=NC2[CH:39]=[CH:40][CH:41]=[CH:42][C:37]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C1C=CC2N(O)N=NC=2C=1.CN1CCOCC1>ClCCl.CN(C1C=CN=CC=1)C>[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]([N:20]1[CH:24]=[C:23]([C:25]([NH:27][CH:39]3[CH2:40][CH2:41][CH2:42][CH2:37]3)=[O:26])[CH:22]=[N:21]1)=[N:14][C:15]=2[NH2:19]

Participants

7

Reactant 4

HCID 79724-MethylmorpholineHCID 757711-HydroxybenzotriazoleHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 98644451-[6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yl)-9H-purin-2-yl]-1H-pyrazole-4-carboxylic acid amide

Product 1

HCID 443308522-[4-[(Cyclopentylamino)carbonyl]-1H-pyrazol-1-yl]-Adenosine

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

The trisilyl derivative acid 20 (0.14 g, 0.2 mmol) was then dissolved in 5 mL dichloromethane. To the solution was added HBTU (0.19 g, 0.4 mmol), HOBt (0.076 g, 4 mmol), N-methylmorpholine (0.04 g, 0.4 mmol) and cat. DMAP. The mixture was allowed to stir at RT for 24 h. The mixture was then washed with 10% citric acid, saturated NaHCO3, brine and dried over MgSO4. The solvent was removed and the residue was treated with 5 mL 0.5N NH4F/MeOH. The solution was heated at reflux for 24 h. The solvent was evaporated and the residue was purified by preparative TLC to afford compound 21, MS 445.26 (M+1).

Workup

  1. washThe mixture was then washed with 10% citric acid, saturated NaHCO3, brine
  2. dry with materialdried over MgSO4
  3. customThe solvent was removed
  4. additionthe residue was treated with 5 mL 0.5N NH4F/MeOH
  5. temperatureThe solution was heated
  6. temperatureat reflux for 24 h
  7. customThe solvent was evaporated
  8. customthe residue was purified by preparative TLC

Sources & evidence

ORD record
ord-2ffe995cea1143faa28fecb1c33e5bf6
Source dataset
uspto-grants-2003_11
Patent number
US06642210B1

Reaction notes

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