scientific & technical presentation standardizer january 2008
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Scientific & technical presentation
Standardizer
January 2008
Why standardize structures?
To recognize the same compound represented with different chemical forms
Custom transformations
Custom transformationsBuilt-in functions
Availability
Mesomers
Tautomersoxo-enol, enamine-imine
Tautomerspyridone-pyridol
Solvent removal
Specific counterion removal
Built-in functions
Custom transformations
Built-in functionsAvailability
Fragment removal
Aromatization
Dearomatization
Hydrogen conversionsconverting implicit hydrogens to explicit
Hydrogen conversionsconverting explicit hydrogens to implicit
2D Cleaning
Template-based Cleaning2D-coordinate calculation of macrocycles or bridged systems
query
Template-based Cleaningaligning search results to the query
Stereo manipulations removing absolute R/S and E/Z stereo configurations
Stereo manipulations setting the absolute stereo (chiral) flag for stereo molecules
Stoichiometry expansionexpanding reaction stoichiometry
Stoichiometry expansionexpanding salt stoichiometry
Group manipulation
Availability
Custom transformations
Built-in functions
Availability
API and command line interface
Standardizer st = new Standardizer(new File("standardize.xml"));st.standardize(mol);
standardize input.sdf -c config.xml -o output.smiles
Graphical User Interface
Features
General– aromatize/dearomatize– add/remove explicit
hydrogens
Transforms– mesomers
– tautomers
– functional groups
Removals– solvents– counterions by list– remove smallest fragment– keep largest fragment– R-groups
Stereo– remove stereo features– set the absolute stereo flag
Sgroups– expand/contract/ungroup– clear/set the absolute stereo
flag– expand stoichiometry of
attached data
Cleaning– partial– full– template based
Features
Compatible– MOL, SDF, RXN, RDF (V2000/V3000)– SMILES, SMARTS/SMIRKS (recursive too)– MRV, CML, PDB
Flexible– customizable parameters– customizable conversions
Available– full API– command line interface– integration with JChem Base and Cartridge– documentation and examples– free for the Academic community
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