The first enantioselective total synthesis of the anti-Helicobacter pylori agent (+)-spirolaxine methyl ether
作者:James E. Robinson、Margaret A. Brimble
DOI:10.1039/b418106a
日期:——
enantioselective synthesis of the anti-Helicobacter pylori agent (+)-spirolaxinemethylether has been carried out in a convergent fashion by heterocycle-activated Julia olefination of a spiroacetal-containing sulfone fragment with a phthalide-containing aldehyde fragment. The total synthesis of (+)-spirolaxinemethylether establishes the absolute stereochemistry of the naturalproduct to be (3R,2''R
Synthesis of the anti-Helicobacter pylori agent (+)-spirolaxine methyl ether and the unnatural (2″S)-diastereomer
作者:James E. Robinson、Margaret A. Brimble
DOI:10.1039/b708265g
日期:——
The first enantioselective synthesis of the anti-Heliocbacter pylori agent (+)-spirolaxinemethylether 2b has been carried out in a convergent fashion establishing that the absolute stereochemistry of the naturalproduct is in fact (3R, 2"R, 5"R, 7"R) after initial synthesis of the unnatural (2"S)-diastereomer 2a. The key step in the synthesis of (+)-spirolaxinemethylether 2b involved a heterocycle-activated