Trifluoroacetic acid → HCID 117735694, compound

HRID 1482348Notes

Reaction equation

HRID 1482348 reaction equation
FC(F)(F)C(O)=O.C(OC([NH:15][C@H:16]([CH2:61][CH2:62][CH2:63][CH2:64][NH:65][C:66](=[O:71])[C:67]([F:70])([F:69])[F:68])[C:17]([O:19][C@H:20]1[C@@H:24]([OH:25])[C@H:23]([N:26]2[CH:34]=[N:33][C:32]3[C:27]2=[N:28][CH:29]=[N:30][C:31]=3[NH2:35])[O:22][C@H:21]1[CH2:36][O:37][P:38]([O:41][C@H:42]1[CH2:46][C@H:45]([N:47]2[CH:52]=[CH:51][C:50]([NH2:53])=[N:49][C:48]2=[O:54])[O:44][C@@H:43]1[CH2:55][O:56][P:57]([OH:60])([OH:59])=[O:58])([OH:40])=[O:39])=[O:18])=O)(C)(C)C>ClCCl>[NH2:15][C@H:16]([CH2:61][CH2:62][CH2:63][CH2:64][NH:65][C:66](=[O:71])[C:67]([F:68])([F:70])[F:69])[C:17]([O:19][C@H:20]1[C@@H:24]([OH:25])[C@H:23]([N:26]2[CH:34]=[N:33][C:32]3[C:27]2=[N:28][CH:29]=[N:30][C:31]=3[NH2:35])[O:22][C@H:21]1[CH2:36][O:37][P:38]([O:41][C@H:42]1[CH2:46][C@H:45]([N:47]2[CH:52]=[CH:51][C:50]([NH2:53])=[N:49][C:48]2=[O:54])[O:44][C@@H:43]1[CH2:55][O:56][P:57]([OH:59])([OH:60])=[O:58])([OH:40])=[O:39])=[O:18]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 117736058HCID 117736058, compound

Product 1

HCID 117735694HCID 117735694, compoundYield 88.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A 10% solution of trifluoroacetic acid in dichloromethane (0.21 mL) was added to a solution of (2S)-(2R,3S,4R,5R)-2-((((((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-2-((phosphonooxy)methyl)tetrahydrofuran-3-yl)oxy)(hydroxy)phosphoryl)oxy)methyl)-5-(6-amino-9H-purin-9-yl)-4-hydroxytetrahydrofuran-3-yl 2-((tert-butoxycarbonyl)amino)-6-(2,2,2-trifluoroacetamido)hexanoate (Compound tk54) (5.3 mg, 5.52 μmol) in dichloromethane (0.1 mL), and the mixture was stirred at room temperature for 55 minutes. Following concentration under reduced pressure, the resulting residue was purified by reverse-phase silica gel column chromatography (0.05% aqueous trifluoroacetic acid solution/0.05% trifluoroacetic acid-acetonitrile solution) to afford (2S)-(2R,3S,4R,5R)-2-((((((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-2-((phosphonooxy)methyl)tetrahydrofuran-3-yl)oxy)(hydroxy)phosphoryl)oxy)methyl)-5-(6-amino-9H-purin-9-yl)-4-hydroxytetrahydrofuran-3-yl 2-amino-6-(2,2,2-trifluoroacetamido)hexanoate (Lys(Tfa)-pdCpA) (Compound tk55) (4.2 mg, 88%).

Workup

  1. concentrationconcentration under reduced pressure
  2. customthe resulting residue was purified by reverse-phase silica gel column chromatography (0.05% aqueous trifluoroacetic acid solution/0.05% trifluoroacetic acid-acetonitrile solution)

Sources & evidence

ORD record
ord-cbbf951392a24ae1a88e93be3c3a57f0
Source dataset
uspto-grants-2016_08
Patent number
US09409952B2

Reaction notes

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