This paper describes the use of (-)-sclareol in the first synthesis of the spirolabdanolide (+)-leopersin D, which also establishes the absolute configuration of the product. The reversibility of conjugate addition/ elimination of oxaspirolabdanolide formation is demonstrated. (C) 2009 Elsevier Ltd. All rights reserved.
Synthesis of sibiricinone A, sibiricinone B and leoheterin
摘要:
Two labdenolides, sibiricinone A and sibericinone B, and a furo-labdane leoheterin have been synthesized from sclareol, for the first time, establishing in this manner the absolute configuration for these compounds. (C) 2008 Elsevier Ltd. All rights reserved.