(2S)-2-benzyloxycarbonylamino-3-{9-[3-(1,4,5,6-tetrahydro-pyrimidin-2-ylcarbamoyl)-propyl]-9H-purin-6-ylamino}-propionic acid tert-butyl ester → (2S)-2-Benzyloxycarbonylamino-3-{9-[3-(1,4,5,6-tetrahydro-pyrimidin-2-ylcarbamoyl)-propyl]-9H-purin-6-ylamino}-propionic Acid

Participants

Reaction Steps

70 mg (Q.12 mmol) of (2S)-2-benzyloxycarbonylamino-3-{9-[3-(1,4,5,6-tetrahydro-pyrimidin-2-ylcarbamoyl)-propyl]-9H-purin-6-ylamino}-propionic acid tert-butyl ester was dissolved in 3 ml of trifluoroacetic acid/water (95/5). The solution was stirred at room temperature for 3 hours. The solvent was removed in vacuo and toluene was added to the residue and then removed in vacuo. The residue was dissolved in acetonitrile/water 1/1 and lyophilized. Yield: 51 mg (trifluoroacetate salt).

Provenance & Evidence