substructure search with explicit H

Hi,

We are using jchem 5.8.3.

Can you clarify why below search returns a result?  The intention is that explicit H's in the query should prevent this match.

./jcsearch -t:s -q '[H]C1=CN=CC([H])=N1' 'CC1=CN=CC(C)=N1'

returns:

CC1=CN=CC(C)=N1

Hi,

The structure is symmetric, and apart from the two connecting carbon atoms there are tow implicit hydrogen atoms on the target as well.

Probably it's easier to see if you visualize the target in Marvin and use 

Structure -> Add -> Add explicit hydrogens.

The searech result is correct.

Best regards,

Szilard

Ha ha ... it is obvious once you point it out .. smile.

Thank you for the help!