1. A compound containing aminopyridine extracted from formula (I) with H1 as H or hydrocarbyl (C1-C4)；R2 is acetyl butadiene, pyridine diene or propane, which is selectively replaced by tar (C1-C4)；O R1 and R2, together with N atoms, form a single ring heterocycle group consisting of 4 to 7 members, 7 to 8 members can ride bicycles, or 8 to 12 alternative members can mix bicycles； R3 is h or tar (C1-C8)；R4 is the tar (C1-C8) to be replaced by halogenated, cyclomethylated (C3-C10) - tar (c0-c4),Arilalquilo（C0-C4），R5 is h or tar (C1-C8), among others；N is 1 or 2. The most popular compounds are: 4 - ((cyclopropylmethylamine) - methyl) - 6 - (3 - (methylamine) acetamide-2-amine； 4 - ((2-methylamineptine) methyl) - 6 - (3 - (methylamine) acetamide-1-il)； pyridine-2-amine； 4 - ((2, Di Di dichloropropyl) amine) - methylamine) - 6 - (3 - (methylamine) acetamide-1-pyridinedi； others. He also mentioned a preparatory process and a pharmaceutical composer. These compounds are antagonistic to H4 histamine receptor and are used in the treatment of asthma, allergic nephritis, dermatitis, skin rash and lupus.SE REFIERE A COMPUESTOS DERIVADOS DE AMINOALQUILPIRIMIDINA DE FORMULA (I) DONDE R1 ES H O ALQUILO(C1-C4)； R2 ES ACETIDINILO, PIRROLIDINILO, PIPERIDINILO O ACEPANILO OPCIONALMENTE SUSTITUIDOS CON ALQUILO(C1-C4)； O R1 Y R2 JUNTO AL ATOMO DE N AL QUE ESTAN UNIDOS FORMAN UN GRUPO HETEROCICLICO MONOCICLICO DE 4 A 7 MIEMBROS, BICICLICOS PUENTEADOS DE 7 A 8 MIEMBROS O BICICLICOS FUSIONADOS DE 8 A 12 MIEMBROS OPCIONALMENTE SUSTITUIDO； R3 ES H O ALQUILO(C1-C8)； R4 ES ALQUILO(C1-C8) OPCIONALMENTE SUSTITUIDO CON HALOGENO, CICLOALQUILO(C3-C10)-ALQUILO(C0-C4), ARILALQUILO(C0-C4), ENTRE OTROS； R5 ES H O ALQUILO(C1-C8)； n ES 1 O 2. SON COMPUESTOS PREFERIDOS: 4-((CICLOPROPILMETILAMINO)-METIL)-6-(3-(METILAMINO)ACETIDIN-1-IL)PIRIMIDIN-2-AMINA； 4-((2-ADAMANTILAMINO)METIL)-6-(3-(METILAMINO)ACETIDIN-1-IL)PIRIMIDIN-2-AMINA； 4-(((2,2-DIETILCICLOPROPIL)-METILAMINO)METIL)-6-(3-(METILAMINO)ACETIDIN-1-IL
