Searching Reactions:

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Extend SMARTS with '>' operator, like SMILES, with optional atom map.

Any valid Reaction SMILES is a valid SMARTS query.

Any valid Molecule SMARTS can be a component of a Reaction SMARTS query.

Recursive SMARTS supports only molecule expressions.

Examples:

• CC(=O)[OH]>>CC(=O)OCC
  

  Matches any reaction with a reactant acid and a product ester. Includes all esterification reactions, plus any reaction which happens to have the appropriate functionality in its components.

• C[C:2](=[O:1])[OH:1]>>C[C:2](=[O:1])OCC,

  Matches esterification reactions.

Example Reaction SMARTS:
Query:	Reaction:	Matches:
C>>	CC>>CN	2
>C>	CC>>CN	0
>>C	CC>>CN	1
C	CC>>CN	3
C.N	CC>>CN	3

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