Here's how to find the list of bioactivities for a ChEMBL target:
From the ChEMBL webpage:
-a) paste the target accession (eg. 'O60760') in the search bar and click on targets
-b) on the page that you land on - click on the right hand side where it says 'Please select"
c) Download the bioactivities and you can search for the ChEMBL_Id of
the molecule you are interested in, and this will give you the links to
the publication where the bioactivities were reported
Thanks to Prudence from ChEMBL for this!