DERIVADOS DE QUINOLIZINONA COMO INHIBIDORES DE PI3K

Se divulgan compuestos de la fórmula I, ESPACIO PARA FÓRMULA sus formas tautoméricas, estereoisómeros, en donde R1 y R4 y n son como se define en la descripción. Dichos compuestos son útiles como inhibidores de la enzima PI3K. Disclosed are compounds of formula (I), their tautomeric forms, stereoisomers, and pharmaceutically acceptable salts thereof, wherein R1 - R4, and n are as defined in the specification, pharmaceutical compositions including a compound, tautomer, stereoisomer, or salt thereof, and methods of treating or preventing diseases or disorders, for example, cancer, that are amenable to treatment or prevention by inhibiting the PI3K enzyme of a subject.