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Synonyms: compound 10 (Husbands and Lewis, 1995) 
Compound class: Synthetic organic
Comment: BU72 was reported as a long-lasting μ receptor agonist . Its very high affinity meant that it was not considered as a clinical candidate. Strong lipophilic binding interactions with the μ receptor confer slow receptor kinetics, and therefore long duration of action.
We revised the chemical structure in March 2021, based on data arising from analysis of the crystal structure of the BU72/μ receptor complex that was deposited to the Protein Data Bank (5C1M) [2-3]. This shows that the (β-phenyl) group of BU72 shoud be in the (R) configuration. BU72 has been used in a number of studies to model the μ receptor activation process [1,6].
Ligand Activity Visualisation Charts
These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.✖