BF<sub>3</sub>·Et<sub>2</sub>O Catalysed 4-Aryl-3-phenyl-benzopyrones, Pro-SERMs, and Their Characterization

<div>Route 2 for the synthesis of coumarin based SERM’s precursors.</div>

Advances in Pharmacological and Pharmaceutical Sciences

Scheme 2: BF<sub>3</sub>·Et<sub>2</sub>O Catalysed 4-Aryl-3-phenyl-benzopyrones, Pro-SERMs, and Their Characterization 