Defining Attachment Points

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Specify where the fragments should bond to the parent structure at the alternative group label:

1. Click the diamond shaped Attachment Point tool on the Chemical Symbols palette.

2. Do one of the following:

• Click a substructure fragment where you want to place the attachment point.
• Point to a substructure fragment where you want to place the attachment point and press the HotKey ".".

An attachment point symbol appears.

3. Repeat step 2 for all fragments.

When you create a parent compound that contains an alternative group you defined, an attachment point symbol appears next to the label. The attachment point number matches that found in the definition.

The number displayed in the attachment point symbol is the attachment rank order. See the example in "Multiple Attachment Points".