Refers to a compound of formula (i) or (I - b), where R1 is Hydrogen or C1 - C5 alkyl R2 is Hydrogen or c1-c4 alkyl, among others R3 is Hydrogen, halogen, among others.It also refers to a process for its preparation.These compounds are useful in the treatment of piperidinilpirazolopirimidinonas replaced acute and Recurrent bleeding in patients with or without Hereditary or acquired hemostatic DisordersSe refiere a un compuesto de formula (I-A) o (I-B), donde: R1 es hidrogeno o alquilo C1-C5 R2 es hidrogeno, alquilo C1-C4, entre otros R3 es hidrogeno, halogeno, entre otros. Tambien se refiere a un procedimiento para su preparacion. Dichos compuestos son piperidinilpirazolopirimidinonas sustituidas utiles en el tratamiento de sangrado agudo y recurrente en pacientes con o sin trastornos hemostaticos hereditarios o adquiridos
