1,2,3,4,4a,5,10,10a-Octahydrobenzo[g]quinoline (also known as octahydrobenzo[g]quinoline or OBQ) is a saturated (hydrogenated on two rings) derivative of benzo[g]quinoline, and is also a rigid cyclized analog of 2-aminotetralin. Most OBQ derivatives are dopaminergic or adrenergic drugs. Within this class of compounds, the ring-joining configurations are categorized in such a way as to distinguish between trans- and cis-configurations; one of the related compounds is the class of octahydrobenzo[f]quinolines.
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