Chemistry Letters · 2006 · 14 citations · 14 references
Natural SciencesChemistryMedicinal ChemistryCrystal StructureStructural BiologySupramolecular ChemistryCrystal ChemistryCrystal LatticeCrystal SymmetryCrystallographyMolecular SymmetryCrystal Symmetry AnalysisHelical AssemblyHelical SymmetryPlant Alkaloids
Abstract Cinchona alkaloids form 21 helical assemblies in their crystals. We firstly define the handedness of the assemblies on the basis of the molecular tilt. It is revealed that cinchonine and its pseudo-enantiomer, cinchonidine form 21 helical assemblies with right- and left-handedness, respectively.
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Asymmetric Organic Catalysis with Modified Cinchona Alkaloids
Shi‐Kai Tian, Yonggang Chen, Jianfeng Hang et al. · Accounts of Chemical Research · 2004 · 618 citations