| 摘要 |
PCT No. PCT/EP86/00401 Sec. 371 Date Mar. 16, 1987 Sec. 102(e) Date Mar. 16, 1987 PCT Filed Jul. 8, 1986 PCT Pub. No. WO87/00523 PCT Pub. Date Jan. 29, 1987.Tertiary hydroxyalkylxanthines having the general formula (I), characterized by the fact that at least one of the residues R1 and R3 represents a tertiary hydroxyalkyl group of formula (Ia) in which R4 represents an alkyl group having up to 3 carbon atoms and n a whole number from 2 to 5; the other residue which may remain R1 or R3 is a hydrogen atom or an aliphatic hydrocarbon residue R5 having up to 6 carbon atoms, in which the carbon chain may be separated by a maximum of two oxygen atoms or be substituted by an oxo group or two hydroxy groups at the most, and R2 represents an alkyl group with 1 to 4 carbon atoms. Also described is a process for manufacturing these compounds, which are suitable for the manufacture of medicines, in particular for use in the prevention and/or treatment of peripheral and/or cerebral irrigation disorders. <IMAGE> (I) <IMAGE> (Ia) |
