Dear Users,
I was using the SDWriter in the rdkit kit to generate a SD file with
mutiple entries generated using smiles and later assign SD tag data (e.g.
pubchem_ID, IUPAC_name, etc).
However at the end of each tag header I noticed there is a number (bolded):
...
> * (1) *
N1-(2-ethylbutyl)he
Andrew has pointed out) the only reason I can think of to do
> so would be because it causes problems for some other piece of (likely
> commonly used) software.
>
> Are the sequence numbers causing a problem for you?
>
> -greg
>
>
>
>
>
>
> On Sat, Dec 17, 2016 at 1
mmand prompt.
--
Thanks,
Milinda Samaraweera,
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Training and
understand is how to detect entries with heavy isotopes: Is there
an efficient and correct way of achieving this using rdkit?
thanks,
--
Milinda Samaraweera
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import rdqueries
>
> In [3]: q = rdqueries.IsotopeGreaterQueryAtom(1)
>
> In [7]: list(x.GetIdx() for x in Chem.MolFromSmiles('CC[13CH3]'
> ).GetAtomsMatchingQuery(q))
> Out[7]: [2]
>
> In [8]: list(x.GetIdx() for x in Chem.MolFromSmiles('[12CH3]CC[1
>
>
> So you could loop over your molecules and then remove the ones that match
> the smarts.
>
> Ciao
>
> Nik
>
>
>
>
>
> *From: *Milinda Samaraweera
> *Date: *Wednesday 18 January 2017 at 20:47
> *To: *Greg Landrum
> *Cc: *RDKit Discuss
> *Subj
Hi Bob,
I am trying to filter out any compound that does not have the most stable
isotopic form; (anything other than: 12C,1H,14N,16O, 31P, 32S) or to
contain only MonoIsotopic compounds.
Thanks,
Milinda
--
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Yes, most common should be the correct term.
Thanks,
Milinda
On Wed, Jan 18, 2017 at 5:49 PM, Peter S. Shenkin wrote:
> You say "most stable", but I think you mean "most common." 2H is as stable
> as 1H, but less common.
>
> -P.
>
> On Wed, Jan 18
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