51526-56-8

Usage

Uses

Organic synthesis, synthetic intermediate in pharmaceutical production

Chemical class

Thiol (contains an SH group)

Side chain

Methoxy group attached to a phenyl ring

Unique chemical properties

Reactivity with certain compounds due to the presence of the thiol group

Importance

Significant compound in organic chemistry

Applications

Industrial and synthetic uses

Downstream Products

• 1051887-02-5 C₁₉H₃₀OS₃ 
• 1415676-52-6 C₁₇H₂₀N₄O₃S 

Relevant academic research and scientific papers

Inhibition of monoamine oxidase by 8-[(phenylethyl)sulfanyl]caffeine analogues

In a previous study we have investigated the monoamine oxidase (MAO) inhibitory properties of a series of 8-sulfanylcaffeine analogues. Among the compounds studied, 8-[(phenylethyl)sulfanyl]caffeine (IC50 = 0.223 μM) was found to be a particularly potent inhibitor of the type B MAO isoform. In an attempt to discover potent MAO inhibitors and to further examine the structure-activity relationships (SAR) of MAO inhibition by 8-sulfanylcaffeine analogues, in the present study a series of 8-[(phenylethyl)sulfanyl]caffeine analogues were synthesized and evaluated as inhibitors of human MAO-A and -B. The results document that substitution on C3 and C4 of the phenyl ring with alkyl groups and halogens yields 8-[(phenylethyl)sulfanyl]caffeine analogues which are potent and selective MAO-B inhibitors with IC50 values ranging from 0.017 to 0.125 μM. The MAO inhibitory properties of a series of 8-sulfinylcaffeine analogues were also examined. The results show that, compared to the corresponding 8-sulfanylcaffeine analogues, the 8-sulfinylcaffeins are weaker MAO-B inhibitors. Both the 8-sulfanylcaffeine and 8-sulfinylcaffeine analogues were found to be weak MAO-A inhibitors. This study also reports the MAO inhibition properties of selected 8-[(phenylpropyl)sulfanyl]caffeine analogues.