if you don't care what type of atom it is, just that it's aromatic, you
should use [a],
so [a]1[a][a][a][a][a]1 would match any 6-membered aromatic ring
Jason Biggs
On Wed, Sep 20, 2017 at 7:57 PM, James T. Metz via Rdkit-discuss <
rdkit-discuss@lists.sourceforge.net> wrote:
> Hello,
>
> I would like to write a SMARTS that will match all of the individual
> atoms
> in all possible heteroaromatic rings. Does anyone know of an elegant,
> compact way to do this?
>
> If one SMARTS will not work, I can concatenate SMARTS using
> a vertical pipe, "|", as I proposed in an earlier message in this forum.
>
> I am (perhaps) expecting SMARTS something like
> [c]1[c][n][c][c]1
> etc
> [c]1[c][c][c][c][c]1
> [c]1[c][n][c][c][c]1
> etc.
>
> Perhaps there is a very elegant way to specify the possible
> patterns. I can't think of a way to do it, other than exhaustive
> enumeration.
>
> Any ideas?
>
> Regards,
> Jim Metz
>
>
>
>
>
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