POLYHYDROXYALKYLPYRAZINE DERIVATIVES, PREPARATION AND MEDICINES CONTAINING THEM

The invention concerns medicines containing as active principle at least a compound of general formula (I) in which R1 represents the steroisomer forms of the chain (II): -(CHOH)3-CH2OH and either R2 represents a hydrogen atom and R3 represents the stereoisomer forms of the chain (III): -CH2-(CHOH)2-CH2OH or R2 represents the stereoisomer forms of chains (II): -(CHOH)3-CH2OH (II) or (III): -CH2-(CHOH)2-CH2OH and R3 represents a hydrogen atom or one of its salts, the novel stereoisomers of compounds of general formula (I), their salts and their preparation. Medicamento que contienen como principio activo al menos un compuesto de formula general. En la cual: R1 represente las formas estereoisomeras de la cadena û(CHOH)3-CH2OH (II) y ya sea que R2 represente las formas estereoisomeras de la cadena ûCH2-(CHOH)2-CH2OH (III) ya sea que R2 represente las formas estereoisomeras de las cadenas û(CHOH)3CH2OH (II) o ûCH2-(CHOH)2-CH2OH (III) Y R3 represente un atomo de hidrogeno, o una de sus sales, los nuevos estereoisomeros de los compuestos de formula general (I), sus sales y su preparacion.