New chromosomal derivatives, their preparation process and drug synthesis containing chromosomes

摘要

The Invention relates to compounds of formula (i): Space for the formula, in which R1 and R2 together form the carbon chain in the following formula: space: R3 represents a hydrogen Atom or an alkyl group, R represents a hydrogen Atom, an alkyl group, an aryl Or heteroaryl, 3,4 - dioxociclobutenilo, alquilcarbonilo, cicloalquilcarbonilo, heterocicloalquilcarbonilo,Benzoyl, arilsulfonilo or heteroarilsulfonilo, each of these groups or optionally substituted, R3 and R4 form along with the nitrogen Atom to which are attached to a cycle that contains five links, the Cycle thus formed can be replaced optionally. Medicines.