Studies on the stereocontrolled transformation of nitrohexofuranoses into 2-oxabicyclo[2.2.1]heptanes. V: Synthesis of enantiopure methyl (1R,2R,4S)-2-amino-4-hydroxycyclopentanecarboxylate
摘要:
The first total synthesis of enantiopure methyl (1R,2R,4S)-2-amino-4-hydroxycyclopentanecarboxylate was carried out according to our recent novel strategy for the transformation of nitrohexofuranoses into cyclopentylamines, which is based on an intramolecular cyclisation leading to 2-oxabicyclo[2 2 1]heptane derivatives It was observed that on of the substrate anomers produces an elimination rather than a cyclisation reaction These and other differences in the reaction paths for this key step were rationalised by means of molecular mechanism based Calculations. (c) 2010 Published by Elsevier Ltd
Studies on the stereocontrolled transformation of nitrohexofuranoses into 2-oxabicyclo[2.2.1]heptanes. V: Synthesis of enantiopure methyl (1R,2R,4S)-2-amino-4-hydroxycyclopentanecarboxylate
摘要:
The first total synthesis of enantiopure methyl (1R,2R,4S)-2-amino-4-hydroxycyclopentanecarboxylate was carried out according to our recent novel strategy for the transformation of nitrohexofuranoses into cyclopentylamines, which is based on an intramolecular cyclisation leading to 2-oxabicyclo[2 2 1]heptane derivatives It was observed that on of the substrate anomers produces an elimination rather than a cyclisation reaction These and other differences in the reaction paths for this key step were rationalised by means of molecular mechanism based Calculations. (c) 2010 Published by Elsevier Ltd