abstract |
A semisulphate of (1S, 4R) -cis-4- [2-amino-6- (cyclopropylamino) -9H-purin-9-yl] -2-cyclopentene-1-methanol or solvate thereof . Also disclosed are preliminary routes and starting compounds for the preparation of semisulfates. Hemisulphate is useful in medicine, especially for the treatment of viral infections. |