chemistry

Lysergic acid 2-butylamide

Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide rather than just read about it. In short: Lysergic acid 2-butylamide (LSB or LASBA), also known as 2-butyllysergamide, is an analogue of LSD originally developed by Richard Pioch at Eli Lilly in the 1950s, but mostly publicised through research conducted by the team led by David E. Nichols at Purdue University.

Key takeaways

Lysergic acid 2-butylamide belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Lysergic acid 2-butylamide to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Lysergic acid 2-butylamide from memory before moving on to harder problems.

Reference excerpt

Lysergic acid 2-butylamide (LSB or LASBA), also known as 2-butyllysergamide, is an analogue of LSD originally developed by Richard Pioch at Eli Lilly in the 1950s, but mostly publicised through research conducted by the team led by David E. Nichols at Purdue University. It is a structural isomer of LSD, with the two ethyl groups on the amide nitrogen having been replaced by a single sec-butyl group, joined at the 2-position. It is one of the few lysergamide derivatives to exceed the potency of LSD in animal drug discrimination assays, with the (R) isomer having an ED50 of 33nmol/kg for producing drug-appropriate responding, vs 48nmol/kg for LSD itself. The corresponding (R)-2-pentyl analogue has higher binding affinity for the 5-HT1A and 5-HT2A receptors, but is less potent in producing drug-appropriate responding, suggesting that the butyl compound has a higher efficacy at the receptor target. The drug discrimination assay for LSD in rats involves both 5-HT1A and 5-HT2A mediated components, and while LSB is more potent than LSD as a 5-HT1A agonist, it is slightly less potent as a 5-HT2A agonist, and so would probably be slightly less potent than LSD as a hallucinogen in humans. The main use for this drug has been in studies of the binding site at the 5-HT2A receptor through which LSD exerts most of its pharmacological effects, with the stereoselective activity of these unsymmetric monoalkyl lysergamides foreshadowing the subsequent development of compounds such as lysergic acid 2,4-dimethylazetidide (LSZ).

See also Substituted lysergamide Lysergic acid 3-pentylamide (LSP or 3-LSP) Lysergic acid 2-pentylamide (2-LSP) Methylisopropyllysergamide (MiPLA) Lysergic acid tert-butylamide (LAtB) Ergonovine

References

External links LSB - Isomer Design The Big & Dandy LSB (Lysergic Acid 2-Butyl Amide) Thread - Bluelight

Illustrations

Worked examples

Example 1 — a first encounter with Lysergic acid 2-butylamide

Start with the simplest possible case. Write down what Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide

In research: Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide 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: Lysergic acid 2-butylamide is common in secondary-school and first-year university syllabi. It links to neighbouring topics Carboxamides, David E. Nichols, Designer drugs, so understanding it makes those chapters shorter.
In everyday life: Look for Lysergic acid 2-butylamide 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Lysergic acid 2-butylamide” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Lysergic acid 2-butylamide in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lysergic acid 2-butylamide in simple terms?

Why does Lysergic acid 2-butylamide 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 Lysergic acid 2-butylamide?

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 Lysergic acid 2-butylamide.