NOUVEAUX DERIVES TRICYCLIQUES DE DIHYDRO-QUINNOLEINES, LEUR PROCEDE DE PREPARATION ET LES COMPOSITIONS PHARMACEUTIQUES QUI LES CONTIENNENT

摘要

The invention concerns a compound of formula (I), wherein (a) represents a single or double bond; (b) represents a cycle selected among (i), (ii), (iii), (iv), (v), (vi) and (vii). The inventive compounds, besides their novelty, exhibit very interesting antitumour properties.