Trifluoroacetic acid → Trifluoroacetate
Reaction equation
[F:1][C:2]([F:7])([F:6])[C:3]([OH:5])=[O:4].C(N[C@H](C([O:22][CH2:23][C@H:24]([CH2:37][CH2:38][O:39][C:40](=[O:58])[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][CH2:55][CH2:56][CH3:57])[CH2:25][N:26]1[CH:34]=[N:33][C:32]2[C:31](=[O:35])[NH:30][C:29]([NH2:36])=[N:28][C:27]1=2)=O)C(C)C)(OC(C)(C)C)=O>>[OH:22][CH2:23][C@H:24]([CH2:37][CH2:38][O:39][C:40](=[O:58])[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][CH2:55][CH2:56][CH3:57])[CH2:25][N:26]1[CH:34]=[N:33][C:32]2[C:31](=[O:35])[NH:30][C:29]([NH2:36])=[N:28][C:27]1=2.[F:1][C:2]([F:7])([F:6])[C:3]([O-:5])=[O:4]Participants
4
Procedure
Chilled trifluoroacetic acid (2.0 g) was added to (R)-9-[2-(N-Boc-L-valyloxymethyl)-4-(stearoyloxy)butyl]guanine (180 mg; 0.25 mmol) and the solution kept at room temperature for 1 h, evaporated to a small volume, and lyophilized repeatedly with dioxane until a white amorphous powder was obtained. The yield of title compound, obtained as the trifluoracetate salt, was quantitative.
Workup
- customevaporated to a small volume
- customwas obtained
Sources & evidence
- ORD record
- ord-f83f0046ebf34adba15333b4956e6625
- Source dataset
- uspto-grants-2005_04
- Patent number
- US06878844B2
Reaction notes
Loading…