Enantioselective Total Synthesis of (−)-Dehydrobatzelladine C
作者:Shawn K. Collins、Andrew I. McDonald、Larry E. Overman、Young Ho Rhee
DOI:10.1021/ol0498141
日期:2004.4.1
[GRAPHICS](-)-dehydrobatzelladine CThe oxidation of two tethered Biginelli adducts was examined as a potential key step in total syntheses of highly oxidized batzelladine and crambescidin alkaloids. Although angular hydroxyl substitution could not be introduced, dehydrogenation was readily accomplished. This latter conversion is a key step in the first total synthesis of dehydrobatzelladine C.
Synthesis of batzelladine E and its E isomer
作者:Barry B. Snider、Jinsheng Chen
DOI:10.1016/s0040-4039(98)01196-4
日期:1998.8
The synthesis of 4E established that batzelladine E (4Z) has the Z- rather than the E-stereochemistry previously depicted. Batzelladine E (4Z) has been synthesized by an efficient 9-step route in 3% overall yield.