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Upstream product

• 22009-38-7 7-hydroxy-1-tetralone 
• 622-95-7 4-chlorobenzyl bromide 
• 6836-19-7 7-Methoxy-1-tetralone 

Relevant academic research and scientific papers

The evaluation of 1-tetralone and 4-chromanone derivatives as inhibitors of monoamine oxidase

Abstract: Monoamine oxidase (MAO) is of much clinical relevance, and inhibitors of this enzyme are used in the treatment for neuropsychiatric and neurodegenerative disorders such as depression and Parkinson’s disease. The present study synthesises and evaluates the MAO inhibition properties of a series of 33 1-tetralone and 4-chromanone derivatives in an attempt to discover high-potency compounds and to expand on the structure–activity relationships of MAO inhibition by these classes. Among these series, eight submicromolar MAO-A inhibitors and 28 submicromolar MAO-B inhibitors are reported, with all compounds acting as specific inhibitors of the MAO-B isoform. The most potent inhibitor was a 1-tetralone derivative (1h) with IC50 values of 0.036 and 0.0011?μM for MAO-A and MAO-B, respectively. Interestingly, with the reduction of 1-tetralones to the corresponding alcohols, a decrease in MAO inhibition potency is observed. Among these 1-tetralol derivatives, 1p (IC50 = 0.785?μM) and 1o (IC50 = 0.0075?μM) were identified as particularly potent inhibitors of MAO-A and MAO-B, respectively. Potent compounds such as those reported here may act as leads for the future development of MAO-B specific inhibitors. Graphic abstract: The present study describes the MAO inhibitory activities of a series of 1-tetralone and 4-chromanone derivatives. Numerous high-potency MAO-B specific inhibitors were identified.[Figure not available: see fulltext.].

The Synthesis and Evaluation of C7-Substituted α-Tetralone Derivatives as Inhibitors of Monoamine Oxidase

Based on a previous report that α-tetralone (3,4-dihydro-2H-naphthalen-1-one) is a promising scaffold for the design of highly potent inhibitors of the enzyme, monoamine oxidase, the present study investigates the monoamine oxidase inhibitory properties of a synthetic series of fifteen C7-substituted α-tetralone derivatives. Arylalkyloxy substitution on C7 of the α-tetralone moiety yielded compounds with high inhibition potencies toward the human monoamine oxidase-B isoform with all compounds possessing IC50 values in the submicromolar range (0.00089-0.047 μm). The C7-substituted α-tetralones also were highly potent monoamine oxidase-A inhibitors with thirteen (of fifteen) compounds possessing IC50 values in the submicromolar range (0.010-0.741 μm). The α-tetralones were, however, in each instance selective for monoamine oxidase-B over the monoamine oxidase-A isoform. Dialyses of enzyme-inhibitor mixtures show that, while a representative inhibitor acts as a reversible monoamine oxidase-A inhibitor, inhibition of monoamine oxidase-B is not readily reversed by dialysis. Using a molecular modeling approach, possible binding orientations and interactions of selected α-tetralones with the active sites of the monoamine oxidases are also proposed. This study suggests that C7-substituted α-tetralones are promising monoamine oxidase inhibitors and may represent lead compounds for the development of therapies for Parkinson's disease and depression. C7-Substituted α-tetralones act as high potency reversible inhibitors of human MAO-A and MAO-B. This class of compounds represent promising leads for the development of therapies for Parkinson's disease and depression.

Pyrazinyl-substituted naphthalene derivatives

Compounds of the formula where R1 is of the formulae R2 is —R4, —O—R4, —O—S (O)2—R4, —NR4R5, R4—(CH2)b—NH(C═X)—(CH2)—, R4—(CH2)b—O(C═O)NH—(CH2)c—(C═O)NH—, R4(C═O)NH—(C═O)NH—, —(CH2)b—NH(C═X)—(CH2)c—R4, R4—(CH2)b—O(C═)—(CH2)c—, —(CH2)b—O(C═O)—(CH2)c—R4, —NH(C═X)NH—R4, R4—O(C═O)O—, —O(C═)NH—R4, R4—O(C═O)NH—, —(CH2)b—(C═0)—(CH2)c—R4, —NH—S(O)2—R4, —C(OH)R4R5, —CH(OH)—R4, —(C═O)—NR4R5, —CN, —NO2, substituted C1 to C6 alkyl, substituted or unsubstituted C1 to C6 alkenyl, or substituted or unsubstituted C1 to C6 alkynyl, said substituted moieties substituted with a moiety of the formulae —R4, —R4R5, —O—R4, or —S(O)d—R4. These compounds are useful psychotherapeutics and are potent serotonin (5-HT1) agonists and antagonists and may be used in the treatment of depression, anxiety, eating disorders, obesity, drug abuse, cluster headache, migraine, pain and chronic paroxysmal hemicrania and headache associated with vascular disorders, and other disorders arising from deficient serotonergic neurotranmission. The compounds can also be used as centrally acting antihypertensives and vasodilators.