3-1H-TETRAZOL-5-IL-4H-PIRIDO 1,2-A PIRIMIDIN-4-ONI SOSTITUITI UTILI IN PARTICOLARE COME AGENTI TERAPEUTICI PER INIBIRE LE REAZIONI ALLERGICHE E PROCEDIMENTO PER LA PRODUZIONE DEI DETTI DERIVATI

摘要

A novel series of optionally substituted 3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-ones is provided for use as inhibitors of allergic reactions. The compounds exhibit antiallergy activity by both oral and parenteral routes of administration.