R-group attachment to a ring structure

User 42f208ce8e

20-08-2011 12:21:24

Hi,


I am trying to draw a markush structure as attached in the file.  It displays an error while enumeration. Could some one help me in doing this.


Thanks & regards,


Yogitha


ChemAxon a3d59b832c

22-08-2011 09:19:19

Dear Yogitha,


 


The problem is that the R-groups in the scaffold both have 2 connections, and the definitions all have only 1 attachment point. This is also why Marvin sketch draws the number denoting the R-groups' second connection with a red circle: it warns about the problems in the attachment points.


Please add the second attachment point to the definitions and that will fix both the coloring and the enumeration.


 


See:


http://www.chemaxon.com/marvin/help/sketch/sketch-basic.html#howto-draw.rgroups


 


In Marvin 5.6, we are also planning to introduce a new Structure checker in Marvin that can point to R-group attachment point errors more specifically during editing.


 


Best regards,


Szabolcs

User 42f208ce8e

22-08-2011 10:33:27

Dear Szabolcs,


Thanks for the reply. It is really helpful. Now I could enumerate this molecule.


Best regards,


Yogitha