作者:Tushar Kanti Chakraborty、Amit Kumar Chattopadhyay
DOI:10.1021/jo800181n
日期:2008.5.1
A convergent totalsynthesis of the cytotoxic natural product cruentaren B is completed in 26 steps (longest linear sequence) with an overall yield of 7.1%. For the construction of the C1−C11 benzolactone fragment of the molecule, the key steps used were O-methylation, using a Mitsunobu reaction, a Stille coupling method to construct the C7−C8 bond, and a Brown’s asymmetric crotylboration reaction