chemistry

RTI-336

RTI-336 is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand RTI-336 rather than just read about it. In short: RTI-336, also known as RTI-4229-336 or LS-193,309 is a potent and selective dopamine reuptake inhibitor that was initially developed by the Research Triangle Institute, now known as RTI International. Pharmacology It is a phenyltropane derivative that binds to the dopamine transporter with approximately 20 times the affinity of cocaine.

Key takeaways

RTI-336 belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect RTI-336 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of RTI-336 from memory before moving on to harder problems.

Reference excerpt

Pharmacology It is a phenyltropane derivative that binds to the dopamine transporter with approximately 20 times the affinity of cocaine. However, it produces relatively mild stimulant effects, with a slow onset and a long duration of action. (Although, other sources classify it as having among the faster onsets of action among phenyltropanes.) Affinity of RIT-336 and analogs for the main monoamine transporters (DAT, NET, SERT):

[3H]CFT: [3H]CFT is a selective radioligand for the dopamine transporter (DAT) [3H]Nisoxetine: This is a radioligand for the norepinephrine transporter (NET) [3H]Paroxetine: This is a radioligand for the serotonin transporter (SERT) N ÷ D: ratio of norepinephrine transporter (NET) affinity to dopamine transporter (DAT) affinity S ÷ D: ratio of serotonin transporter (SERT) affinity to dopamine transporter (DAT) affinity

Animal studies These characteristics make it a potential candidate for the treatment of cocaine addiction, as a possible substitute drug, analogous to the use of methadone for treating heroin dependence. RTI-336 fully substitutes for cocaine in addicted monkeys and supports self-administration, and significantly reduces rates of cocaine use, especially when combined with SSRIs. Research is ongoing to determine whether it could be a viable substitute drug in human cocaine addicts. RTI-336 and RTI-177 exhibited lower reinforcing strength than cocaine in nonhuman primates, indicating reduced abuse liability and supporting their viability as pharmacotherapies for addiction. Chronic RTI-336 administration in rhesus monkeys altered motor activity and sleep patterns but did not cause adverse hormonal changes, suggesting a relatively safe profile for long-term therapeutic use.

Clinical studies A dosage of up to 20mg has been tolerated in healthy males.

See also RTI-177 List of cocaine analogues

References

Illustrations

Worked examples

Example 1 — a first encounter with RTI-336

Start with the simplest possible case. Write down what RTI-336 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to RTI-336 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about RTI-336 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of RTI-336

In research: RTI-336 appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses RTI-336 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: RTI-336 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 4-Chlorophenyl compounds, 4-Tolyl compounds, Dopamine reuptake inhibitors, so understanding it makes those chapters shorter.
In everyday life: Look for RTI-336 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study RTI-336 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what RTI-336 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain RTI-336 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is RTI-336 in simple terms?

RTI-336, also known as RTI-4229-336 or LS-193,309 is a potent and selective dopamine reuptake inhibitor that was initially developed by the Research Triangle Institute, now known as RTI International. Pharmacology It is a phenyltropane derivative that binds to the dopamine transporter with approxim…

Why does RTI-336 matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study RTI-336?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on RTI-336.