Synthesis 2006(5): 853-859  
DOI: 10.1055/s-2006-926329
PAPER
© Georg Thieme Verlag Stuttgart · New York

A Concise Route for the Synthesis of Biologically Interesting Pyranocoumarins - Seselin, (±)-cis-Khellactone, (±)-Quianhucoumarin D, and the (±)-5-Deoxyprotobruceol-I Regioisomer

Yong Rok Lee*a, Won Kyong Leea, Seok Kyun Noha, Won Seok Lyoob
a School of Chemical Engineering and Technology, Yeungnam University, Gyeongsan 712-749, Korea
b School of Textiles, Yeungnam University, Gyeongsan 712-749, Korea
Fax: +82(53)8104631; e-Mail: yrlee@yu.ac.kr;
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Publication History

Received 20 July 2005
Publication Date:
07 February 2006 (online)

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Abstract

An efficient synthesis of pyranocoumarins is achieved starting from 2H-pyrans. This process provides naturally occurring seselin, cis-khellactone, quianhucoumarin D, and the 5-deoxyprotobruceol-I regioisomer.