Keep trying with more random seeds?

On Thu., Jan. 19, 2023, 07:38 Hao, <shenha...@gmail.com> wrote:

> Hi Gianmarco,
>
> In my experience, this just means that you have an impossible molecule. I
> haven't found any ways around it besides trying to embed. If it fails, try
> to swap the other stereoisomer. I find this particularly prevalent in large
> scale datasets where data quality is not very good.
>
> Best,
> Hao
>
> On Thu, Jan 19, 2023 at 7:09 AM Gianmarco Ghiandoni <ghiandon...@gmail.com>
> wrote:
>
>> Hi all,
>>
>> Anyone can help with this matter?
>>
>> Thanks,
>>
>> On Tue, 17 Jan 2023 at 13:03, Gianmarco Ghiandoni <ghiandon...@gmail.com>
>> wrote:
>>
>>> Hi all,
>>>
>>> I have come across an issue while embedding structures with
>>> stereochemistry configurations that presumably lead to clashes between
>>> atoms:
>>>
>>> from rdkit import Chem
>>> from rdkit.Chem import AllChem
>>>
>>> smiles="C1N[C@@H]2CO[C@H]1C2"
>>> m = Chem.MolFromSmiles(smiles)
>>> mh = Chem.AddHs(m)
>>> print(AllChem.EmbedMolecule(mh, randomSeed=11))
>>>
>>> smiles="C1N[C@@H]2CO[C@@H]1C2"
>>> m = Chem.MolFromSmiles(smiles)
>>> mh = Chem.AddHs(m)
>>> print(AllChem.EmbedMolecule(mh, randomSeed=11))
>>>
>>>
>>> Produces:
>>> 0 (successful embedding)
>>> -1  (unsuccessful embedding)
>>>
>>> What is in your opinion the best way to deal with this in order to avoid
>>> failures?
>>>
>>> Thanks,
>>> --
>>> *Gianmarco*
>>>
>>
>>
>> --
>> *Gianmarco*
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