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Tautomerize

This action creates a normal canonical or canonical tautomer form of the molecule.

The created tautomer:

  • represents a group of tautomers which can transform into each other;
  • is supposed to be a stable tautomer;
  • from version 23.3.0 tautomerize action can also create the canonical tautomer: tautomerize:method=CANONICAL
  • the default is the normal canonical tautomer: tautomerize or tautomerize:method=NORMAL_CANONICAL (see tautomerization and tautomers for more details on tautomerization methods)

Example :

Action Input Output
Tautomerize to generate the normal canonical form (default) (tautomerize:method='NORMAL_CANONICAL')
Tautomerize to generate the canonical form (tautomerize:method='CANONICAL')

Note :

  • The created tautomer is always returned in dearomatized form.
  • Action "tautomerize" ungroups all S-groups. After performing "tautomerize", the molecules will not contain any S-groups.