Further Studies In The Chromone Series

In the present work, new Ichellin and visnagin derivatives were synthesized, aiming that the resulting compounds have better spasmolytic activities.The Thesis consist of the following parts :I . Introduetlion :This indvdes a brief on the history, pharma¬cological activity and cneastry of furochromones .Aim of the present investigation :In this part the pharmacological on which theIII. Discussion :This section includes the explanation of the reactions involved .synthesis of both intermediates and final compounds