Trifluoroacetic acid → (R)-2-Amino-9-(2-stearoyloxymethyl-4-(L-valyloxy)butyl)purine
Reaktionsgleichung
[NH2:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:11][C@H:12]([CH2:30][O:31][C:32](=[O:50])[CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH3:49])[CH2:13][CH2:14][O:15][C:16](=[O:29])[C@H:17]([CH:26]([CH3:28])[CH3:27])[NH:18]C(OC(C)(C)C)=O)=[CH:4][N:3]=1.FC(F)(F)C(O)=O>>[NH2:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[CH:7][N:8]2[CH2:11][C@H:12]([CH2:30][O:31][C:32](=[O:50])[CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH3:49])[CH2:13][CH2:14][O:15][C:16](=[O:29])[C@H:17]([CH:26]([CH3:28])[CH3:27])[NH2:18])=[CH:4][N:3]=1Komponenten
3
Versuchsvorschrift
(R)-2-Amino-9-(2-Stearoyloxymethyl-4-(N-tert-butoxycarbonyl-L-valyloxy)butyl)purine (180 mg, 0.26 mmole) was treated with trifluoroacetic acid (5 ml) at 0° C. for 40 min. It was then evaporated in vacuo and coevaporated successively with toluene and methanol. The residue was freeze-dried overnight to give 195 mg of the desired product.