Journal
CHEMMEDCHEM
Volume 6, Issue 6, Pages 1024-1040Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cmdc.201100010
Keywords
catechol; D-1-selective agonists; dopamine; drug design; hydrogen bonds
Categories
Funding
- NIH [MH42705, GM085604, MH60397]
- AFPE
Ask authors/readers for more resources
A novel class of isochroman dopamine analogues, originally reported by Abbott Laboratories, have > 100-fold selectivity for D-1-like over D-2-like receptors. We synthesized a parallel series of chroman compounds and showed that repositioning the oxygen atom in the heterocyclic ring decreases potency and confers D-2-like receptor selectivity to these compounds. In silico modeling supports the hypothesis that the altered pharmacology for the chroman series is due to potential intramolecular hydrogen bonding between the oxygen in the chroman ring and the meta-hydroxy group of the catechol moiety. This interaction realigns the catechol hydroxy groups and disrupts key interactions between these ligands and critical serine residues in TM5 of the D-1-like receptors. This hypothesis was tested by the synthesis and pharmacological evaluation of a parallel series of carbocyclic compounds. Our results suggest that if the potential for intramolecular hydrogen bonding is removed, D-1-like receptor potency and selectivity are restored.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available