Enantioselective Total Synthesis and Determination of Absolute Configuration of Vittatalactone

2009 ◽  
Vol 11 (21) ◽  
pp. 4767-4769 ◽  
Author(s):  
Yvonne Schmidt ◽  
Bernhard Breit
Keyword(s):  
Total Synthesis ◽  
Absolute Configuration ◽  
Enantioselective Total Synthesis ◽  
Determination Of Absolute Configuration

(-)-Strempeliopine, stereoselective total synthesis and the determination of absolute configuration

1986 ◽  
Vol 51 (8) ◽  
pp. 1731-1742 ◽  
Author(s):  
Josef Hájíček ◽  
Jan Trojánek
Keyword(s):  
Circular Dichroism ◽  
Total Synthesis ◽  
Absolute Configuration ◽  
Determination Of Absolute Configuration ◽  
Natural Base ◽  
The Absolute ◽  
Circular Dichroïsm

A synthesis of (±)-strempeliopine (II) is described, the key step of which is the stereoselective reductive rearrangement of 18-methylene-1,2-dehydroaspidospermidine (XI). The absolute configuration of the natural (-)-base II was determined as (2S, 7R, 20R, 21R) on the basis of its synthesis from (+)-18-methylenevincadifformine (XVII) the configuration of which was derived from a comparison of circular dichroism properties of bases with a β-anilinoacrylate chromophore. The biogenesis of the alkaloids of the schizozygane type is discussed.

Enantioselective Total Synthesis of (+)-Steenkrotin A and Determination of Its Absolute Configuration

2015 ◽  
Vol 22 (3) ◽  
pp. 959-970 ◽  
Author(s):  
Saiyong Pan ◽  
Beiling Gao ◽  
Jialei Hu ◽  
Jun Xuan ◽  
Hujun Xie ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Absolute Configuration ◽  
Enantioselective Total Synthesis

Determination of absolute configuration of trimeric indole alkaloid, psychotrimine, by first asymmetric total synthesis

2010 ◽  
Vol 46 (14) ◽  
pp. 2501 ◽  
Author(s):  
Nobuaki Takahashi ◽  
Takeshi Ito ◽  
Yohei Matsuda ◽  
Noriyuki Kogure ◽  
Mariko Kitajima ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Absolute Configuration ◽  
Indole Alkaloid ◽  
Asymmetric Total Synthesis ◽  
Determination Of Absolute Configuration
Sign in / Sign up

Export Citation Format

Share Document