Total synthesis of 14-membered ring β-resorcylic acid lactone (+)-monocillin II†
Shogo
Kamo 
a
and
Kazuyuki
Sugita
*a
a
and
Kazuyuki
Sugita
*a
Abstract
This study outlines the total synthesis of (+)-monocillin II, wherein a cis-isomer selectively produces a trans-isomer during the ring-closing metathesis. The Mitsunobu reaction conducted at −60 °C, facilitating the formation of an ester bond, was the key to completing the total synthesis, which was accomplished in the longest linear sequence of 10 steps with an overall yield of 9.3%.
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