The stereochemistry of the model was checked and all residues found to be in allowed conformations.
In terms of their chemical, pharmacological, kinetic and therapeutic properties, enantiomers and diasteriomers behave as distinct compounds, therefore stereochemistry should be a topic of major concern to all disciplines.
The stereochemistry at each of its five chiral centres is pharmacologically critical.
Thus, their synthetic counterparts must also have the proper stereochemistry .
Accordingly, both the stereochemistry of and the steric hindrance around the interactive hydroxyl group crucially affect the supramolecular structure of the self-assembled chromophores.
By that time atomism had been extended from chemistry and the kinetic theory to offer explanations in stereochemistry , electro-chemistry, spectroscopy and so on.
Thus, in the third and last chapter of his professional life, he returned to stereochemistry .
The absolute stereochemistry was also determined in 1955 via chemical degradation of dihydrocodeinone.
The stereochemistry of quinine is formidable: it has four chiral centres, and thus 16 stereoisomers - of which only one is the natural ingredient of cinchona bark.
The final models display good stereochemistry .