Dear all,

I have a question on tautomer standardization using RDKit.

Is that a way to turn off the aromatization of ring system when generating the 
tautomer enumerator?
For example,


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Here is the code I used.
def TautomerStandardization (mol):
    _params = rdMolStandardize.CleanupParameters()
    _params.tautomerRemoveSp3Stereo = False
    _params.tautomerRemoveBondStereo = False
    _params.tautomerRemoveIsotopicHs = False
    _params.maxTautomers = 1000
    _params.maxTransforms = 1000
    enumerator = rdMolStandardize.TautomerEnumerator(_params)
    mol = enumerator.Canonicalize(mol)
    return mol



Yankang
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