Stereoselective Total Synthesis of (-)-Colletol by Prins Cyclisation
摘要:
A simple and efficient asymmetric total synthesis of the bis-macrolactone (-)-colletol was accomplished, proving the versatility of the Prins cyclisation in natural product synthesis. The synthesis mainly relies upon reductive opening of a pyran ring, Mitsunobu inversion, the Wittig reaction, and Yamaguchi macrolactonisation as the key steps.
The stereoselective total synthesis of xestodecalactone C and epi-sporostatin via the Prins cyclisation
作者:J.S. Yadav、N. Thrimurtulu、K. Uma Gayathri、B.V. Subba Reddy、A.R. Prasad
DOI:10.1016/j.tetlet.2008.08.096
日期:2008.11
Syntheses of xestodecalactoneC and epi-sporostatin are described utilising Prins cyclisations, Mitsunobu reaction and intramolecular Friedel–Crafts acylation. The approach is convergent and highly stereoselective.
A simple and efficient total synthesis of five-membered pyrrolidine, (+)-pseudohygroline is described. The key steps involved in this synthesis are highly stereoselective Prins cyclisation followed by reductive ring opening and hydroboration. (C) 2010 Elsevier Ltd. All rights reserved.