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ChirBase for ACD/Labs

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Index

 

Some research topics developed from ChirBase

 

Click on items for more information

 

Introduction

 

Enantiophore studies

Basic concept of enantiophore

Procedure

Enantiophore frequency analysis

Visualization of the most recurrent enantiophore

 

Molecular modeling

Conformations of diastereomeric complexes

Prediction of elution orders

 

Grid calculations and PLS analysis

Calculation scheme

Illustration of GRID calculation

Plot of predicted versus experimental enantioselectivities (PLS model)

PLS factor contributions for acceptor-lipophile enantiophore pairs

 

ChirBase 3D Database

Building a query in ChirBase from a Three-Interaction Points model

Whelk-O 1 receptor-based queries

Examples of sample fitting 3D-queries in ChirBase

Ligand-based queries

 

Similarity maps

Similarity maps of Crownpak CR, Whelk-O 1 and Chiralcel

Similarity maps comparing molecular diversity between two chiral columns

 

Cluster Analysis / Decision tree

Hierarchical clustering of chiral stationary phases

Cluster analysis (mobile phases)

Decision tree

 

 

 

Enantiophore frequency analysis

Enantiophores can be ranked in order of frequency of occurrence for each data set

 

 

The frequency analysis of the enantiophores in every data set emphasizes the characteristic of a particular chiral receptor to separate a range of compound. For instance, if a few number of enantiophores appears frequently in different molecules of a data set, one can conclude that the selector is very specific.


 

 

 

 

 

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