Question

What is the popular common name for a bioactive compound with chemical name of (m-hydroxyphenyl)-trimethyl ammonium methyl sulphate dimethyl carbomate?

• A. Neostigmine
• B. Pyridostigmine
• C. Physostigmine
• D. Metastigmine

Answer 1

The Correct Option is A

To identify the bioactive compound referred to by its chemical name, we start by analyzing the given compound name: (m-hydroxyphenyl)-trimethyl ammonium methyl sulphate dimethyl carbamate.

This compound can be broken down as follows:

• (m-hydroxyphenyl): This part indicates a phenyl ring with a hydroxyl group in the meta position.
• trimethyl ammonium: A quaternary ammonium group with three methyl groups attached.
• methyl sulphate: A sulphate group with a methyl group attached.
• dimethyl carbamate: A carbamate group with two methyl groups attached.

Neostigmine is a known pharmacologically active compound with these structural characteristics. It belongs to a class of medications known as acetylcholinesterase inhibitors, used for increasing muscle tone in myasthenia gravis and as an antagonist for non-depolarizing muscle relaxants.

The other options can be considered:

• Pyridostigmine: Although similar in function to Neostigmine, it has a different chemical structure characterized by a pyridine ring.
• Physostigmine: Contains an indole structure not reflected in the provided chemical name.
• Metastigmine: Not a widely recognized or used name for any common compound, especially not one fitting the given chemical structure.

Taking all of this information into account, the only option that matches the chemical name given (m-hydroxyphenyl)-trimethyl ammonium methyl sulphate dimethyl carbamate is Neostigmine.

Thus, the correct answer is:

Neostigmine