Scheme 1
From: Second-generation pterocarpanquinones: synthesis and antileishmanial activity

Palladium-catalyzed oxyarylation of 3a, e, and f with 4
From: Second-generation pterocarpanquinones: synthesis and antileishmanial activity
Palladium-catalyzed oxyarylation of 3a, e, and f with 4