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Louis Pasteur - pioneering stereochemist. Chirality can be traced back to 1812, when physicist Jean-Baptiste Biot found out about a phenomenon called "optical activity." [10] Louis Pasteur, a famous student of Biot's, made a series of observations that led him to suggest that the optical activity of some substances is caused by their molecular asymmetry, which makes nonsuperimposable mirror ...
Fenoprofen is chiral drug with one stereogenic center and exists as chiral twins. (S)-enantiomer has the desired pharmacological action where as the (R)-isomer is less active. It is observed that there is stereoselective bioconversion of the (R)- to (S)-fenoprofen. This stereoselective conversion is called chiral inversion. [5] [6]
In pharmaceutical research and development stereochemical analytical methodology may be required to comprehend enantioselective drug action and disposition, chiral purity assessment, study stereochemical stability during formulation and production, assess dosage forms, enantiospecific bioavailability and bioequivalence investigations of chiral ...
Chiral molecules in the receptors in our noses can tell the difference between these things. Chirality affects biochemical reactions, and the way a drug works depends on what kind of enantiomer it is. Many drugs are chiral and it is important that the shape of the drug matches the shape of the cell receptor it is meant to affect.
East African drug trade refers to the sale and trafficking of illegal drugs that take place in East African countries like Kenya, Tanzania, Uganda, Somalia, and Ethiopia. . The most prevalent types of drugs traded in East Africa are heroin, marijuana, cocaine, methamphetamine, and khat, all of which are strictly prohibited in East African countri
A chiral molecule is a type of molecule that has a non-superposable mirror image. The feature that is most often the cause of chirality in molecules is the presence of an asymmetric carbon atom. [16] [17] The term "chiral" in general is used to describe the object that is non-superposable on its mirror image. [18]
AZT trials conducted on HIV-positive African subjects by U.S. physicians and the University of Zimbabwe were performed without proper informed consent. [4] The United States began testing AZT treatments in Africa in 1994, through projects funded by the Centers for Disease Control (CDC), the World Health Organization (WHO) and the National Institutes of Health (NIH).
Ibogaine is a psychoactive indole alkaloid obtained either by extraction from plants in the family Apocynaceae such as Tabernanthe iboga, Voacanga africana, and Tabernaemontana undulata or by semi-synthesis from the precursor compound voacangine, another plant alkaloid.