Hi Egon,

Thank you very much for help. I have tried upon your suggestion,
unfortunately I got same result as before.

Same issue occurred for a group of non-aromatics compounds I have tried.

Kind regards,

Xin





Egon Willighagen-5 wrote:
> 
> Hi Xin,
> 
> On Fri, Jun 12, 2009 at 7:50 PM, Xin Gong<[email protected]> wrote:
>> 1, Here is my rcdk code:
>> ….
>> mol <-
>> parse.smiles("CC(C)C1=C2C(=NC(=NC2=O)CC3=CC=C(C=C3)OCCO)N(N1)C4=C(C=CC=C4Cl)Cl")
>> do.aromaticity(mol)
>> do.typing(mol)
>> convert.implicit.to.explicit(mol)
>> alogp = round(get.alogp(mol),2)
>> print ("alogp is "%+%alogp)
>> ….
> 
> Please try changing the order of typing and aromaticity detection:
> 
> do.typing(mol)
> do.aromaticity(mol)
> 
>> The output is 0.02
>>
>> 2, Here is my java cdk code:
>>
>> IteratingMDLReader myiter = new
>> IteratingMDLReader(sdfile,DefaultChemObjectBuilder.getInstance());
>> IMolecule mol = null;
>> while (myiter.hasNext()) {
>>      mol = (IMolecule) myiter.next();
>>      try {
>>      CDKAtomTypeMatcher matcher =
>> CDKAtomTypeMatcher.getInstance(mol.getBuilder());
>>      Iterable<IAtom> atoms  = mol.atoms();
>>      Iterator a = atoms.iterator();
>>      while (a.hasNext()) {
>>         IAtom atom = (IAtom)a.next();
>>         IAtomType type = matcher.findMatchingAtomType(mol, atom);
>>         AtomTypeManipulator.configure(atom, type);
>>      }
>>      CDKHydrogenAdder adder =
>> CDKHydrogenAdder.getInstance(mol.getBuilder());
>>      adder.addImplicitHydrogens(mol);
> 
> Add here atomaticity detection:
> 
> CDKHueckelAromaticityDetector.detectAromaticity(mol);
> 
>>      AtomContainerManipulator.convertImplicitToExplicitHydrogens(mol);
>>      ALOGPDescriptor descriptor = new ALOGPDescriptor();
>>      DescriptorValue value = descriptor.calculate(mol);
>>      IDescriptorResult theNumbers = (DoubleArrayResult)value.getValue();
>>      System.out.println(theNumbers.toString());
>>      } catch (Exception e) {
>>      System.out.println(e.toString());
>>      }
>> }
>>
>> The java cdk output is
>> 0.01869999999999794,3.4968999999992296E-4,132.36929999999998
>>
>> Same issue occurred for non-aromatics compounds.
> 
> What are the CDK values with the updated code?
> 
> Egon
> 
> 
> -- 
> Post-doc @ Uppsala University
> http://chem-bla-ics.blogspot.com/
> 
> ------------------------------------------------------------------------------
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> 
> 

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