User guide

Figure 11.15: Sample r-group reactant query
A likely hit for the above query is shown below:
Searching for products
If you know the desired end product but not how to get there, you can do a products query. A products query is similar
to a reaction search, except that there is nothing to the left of the arrow. For example, consider the query:
Figure 11.16: Sample r-group product query
Anonymous alternative groups
Anonymous alternative group are a cross between an element list and an alternative group. Element lists comprise sin-
gle elements, but anonymous alternative groups can contain any structure that can be represented by text, such as
nicknames and generic nicknames. Anonymous alternative groups are shortcut notation for regular alternative groups,
eliminating the need to specify a name such as “R1”.
You can concisely define your search query using anonymous alternative groups. By labeling an atom position as a
list of substructures you specify that one of these substructures must match in the structure for which you are search-
ing. Commas must separate the items in the anonymous alternative group. A space after each comma and the brack-
ets are optional. Examples of anonymous alternative groups are shown below.
Figure 11.17: Anonymous alternative groups.
To create anonymous alternative groups:
1. Open an atom label text box.
ChemBioDraw 13.0
Chapter 11: Query structures 223 of 401