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  2. α-Methyl-p-tyrosine - Wikipedia

    en.wikipedia.org/wiki/Α-Methyl-p-tyrosine

    α-Methyl-p-tyrosine (AMPT), or simply α-methyltyrosine, also known in its chiral 2-(S) form as metirosine, is a tyrosine hydroxylase enzyme inhibitor and is therefore a drug involved in inhibiting the catecholamine biosynthetic pathway. [1]

  3. Chiral drugs - Wikipedia

    en.wikipedia.org/wiki/Chiral_drugs

    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 ...

  4. Racemic mixture - Wikipedia

    en.wikipedia.org/wiki/Racemic_mixture

    A racemic mixture is denoted by the prefix (±)-or dl-(for sugars the prefix dl-may be used), indicating an equal (1:1) mixture of dextro and levo isomers. Also the prefix rac- (or racem- ) or the symbols RS and SR (all in italic letters) are used.

  5. LCP theory - Wikipedia

    en.wikipedia.org/wiki/LCP_theory

    In LCP theory a lone pair is treated as a ligand. Gillespie terms the lone pair a lone pair domain and states that these lone pair domains push the ligands together until they reach the interligand distance predicted by the relevant inter-ligand radii. [1]

  6. Absolute configuration - Wikipedia

    en.wikipedia.org/wiki/Absolute_configuration

    COOH, R, NH 2 and H (where R is the side-chain) are arranged around the chiral center carbon atom. With the hydrogen atom away from the viewer, if the arrangement of the CO → R → N groups around the carbon atom as center is counter-clockwise, then it is the L form. [ 14 ]

  7. Trump's transportation chief prospects include former Uber ...

    www.aol.com/news/trumps-transportation-chief...

    WASHINGTON (Reuters) -The Trump transition team is considering a former Uber executive and three current or former Republican congressmen - one of whom is now a Fox News host - to lead the U.S ...

  8. Stereochemistry - Wikipedia

    en.wikipedia.org/wiki/Stereochemistry

    Stereochemistry, a subdiscipline of chemistry, studies the spatial arrangement of atoms that form the structure of molecules and their manipulation. [1] The study of stereochemistry focuses on the relationships between stereoisomers, which are defined as having the same molecular formula and sequence of bonded atoms (constitution) but differing in the geometric positioning of the atoms in space.

  9. $344 for a coffee? Scottish farm is selling UK's most ... - AOL

    www.aol.com/344-coffee-scottish-farm-selling...

    It's an enormous price to pay for a little cup of coffee, but the man behind the pitch promises it won't leave a bitter taste behind because it comes with a sweetener: a share of a dairy farm. A ...