Abstract
By natural product inspired diversity-oriented synthesis, we had developed a new class
of selective antagonist, IKM-159, for the AMPA receptor. Here, we report syntheses
of IKM-159 and skeletally diverse five analogues in racemic forms, two of which are
heterotricycles and the other three compounds are truncated analogues, to study the
structure–activity relationships. The key reactions are two domino reactions including
Ugi/Diels–Alder reaction and domino metathesis reaction. An exceptionally high level
of regiocontrol in the cross metathesis reaction is also reported.
Key words
domino reaction - heterocycles - medicinal chemistry - metathesis - multicomponent
reaction