Nic Miloslav       Example 3    <<       >>       BOOK      KEYWORDS      EXAMPLES      HELP     

Find unsubstituted heteroanalogs of benzene containing one heteroatom in the ring.
 
     Query 1         Query 2         Query 3   

     Query 1       HOME      Hitset 1     
  Q1    2939 hits  

  Note:  
NOT[C] selects any atom but carbon
     Hitset 1       HOME      Query 1     
 1 

103233
 2 

105944
 3 

3637491
 4 

605434
 5 

1363729
 6 

7609742

  Comments:

     Query 2       HOME      Hitset 2     
  Q1    2939 hits  

  Note:  
Q selects any atom with exception of both hydrogen and carbon
     Hitset 2       HOME      Query 2     
 1 

103233
 2 

105944
 3 

3637491
 4 

605434
 5 

1363729
 6 

7609742

  Comments:

     Query 3       HOME      Hitset 3     
  Q1    36 hits  

  Note:  
This query misses pyridine, but results in very substational reduction of hits
     Hitset 3       HOME      Query 3     
 1 

605434
 2 

1363729
 3 

7609742
 4 

103233
 5 

105944
 6 

3637491

  Comments: