Research speed reading in 2021. An article , which mentions 43207-78-9, molecular formula is C10H13NO. The compound – 7-Methoxy-1,2,3,4-tetrahydroisoquinoline played an important role in people’s production and life., 43207-78-9
In previous structure-activity relationship (SAR) studies, we identified (3R)-7-hydroxy-N-((1S)-1-{[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1- piperidinyl]methyl}-2-methylpropyl)-1,2,3,4-tetrahydro-3- isoquinolinecarboxamide (JDTic, 1) as the first potent and selective kappa opioid receptor antagonist from the trans-3,4-dimethyl-4-(3-hydroxyphenyl) piperidine class of opioid antagonist. In the present study, we report the synthesis and in vitro opioid receptor functional antagonism of a number of analogues of 1 using a [35S]GTPgammaS binding assay. The results from the studies better define the pharmacophore for this class of kappa opioid receptor antagonist and has identified new potent and selective kappa antagonist. (3R)-7-Hydroxy-N-[(1S, 2S)-1-{[(3R,4R)-4-(3-hydroxyphenyl)-3,4- dimethylpiperidin-1-yl]methyl}-2-methylbutyl]-1,2,3,4-tetrahydroisoquinoline-3- carboxamide (3) with a Ke value of 0.03 nM at the kappa receptor and 100- and 793-fold selectivity relative to the mu and delta receptors was the most potent and selective kappa opioid receptor antagonist identified.
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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem