Abstract
A versatile synthetic protocol involving the
room temperature direct arylation of benzothiazole with a wide variety of
iodo(hetero)arenes under palladium-catalyzed conditions and promoted by HFIP as
the reaction solvent has been presented herewith. An in-situ one-pot sequential
HFIP promoted selective iodination of (hetero)arenes followed by Pd-catalyzed
direct arylation of benzothiazole has also been disclosed. Synthesis of PMX 610 (antitumor agent) analog has been disclosed and also CJM 126 (antitumor agent) has been synthesized.