Synthesis and antiviral activity of scopadulcic acids analogues
摘要:
The synthesis and antiviral properties of several scopadulcic acid analogues functionalized at C-6/C-7 and C-13 is reported. The preparation of advanced intermediates for the synthesis of scopadulcic acid B/scopadulciol analogues is also described. The biological study revealed the importance of polar groups at C-13, while the stereochemistry at C-8 was not critical for activity. (C) 2003 Elsevier Ltd. All rights reserved.
The diastereoselective synthesis of the simplest member of the scopadulan diterpenes, (-)-thyrsiflorin A methyl ester 10 from chiral (+)-podocarp-8(14)-en-13-one 1, of known absolute configuration, is described. A key step in our synthesis is the intramolecular cyclopropanation of the diazoketone 5 and subsequent regioselective cleavage of the cyclopropane ring.
Synthesis and antiviral activity of scopadulcic acids analogues
作者:Manuel Arnó、Liliana Betancur-Galvis、Juan G. Bueno-Sanchez、Miguel A. González、Ramón J. Zaragozá
DOI:10.1016/s0040-4020(03)01071-8
日期:2003.8
The synthesis and antiviral properties of several scopadulcic acid analogues functionalized at C-6/C-7 and C-13 is reported. The preparation of advanced intermediates for the synthesis of scopadulcic acid B/scopadulciol analogues is also described. The biological study revealed the importance of polar groups at C-13, while the stereochemistry at C-8 was not critical for activity. (C) 2003 Elsevier Ltd. All rights reserved.