This is termed semisynthesis or " partial synthesis ".
2.
One partial synthesis was completed by the A . I . Meyers group in 1995 at Colorado State University.
3.
His research was mainly concentrated on sterols and bile acids, and his work on stigma-sterol contributed to the first partial synthesis of progesterone.
4.
However, at least a partial synthesis'has been around'as a kind of'undercurrent'in modern physics ever since Einstein objected to Bohr's primary thesis : ( paraphrased ) God plays dice
5.
There he focused on the partial synthesis of protein and novel ways of isolating the human insulin receptor molecule, a substance that recognizes insulin and alerts the cell to it.
6.
In this partial synthesis of the BC rings of Taxol, the framework buildup utilized an intramolecule [ 4 + 4 ] photocycloaddition of a relatively linear and simple 2-pyridone derivative, folding it into the desired fused rings with correct stereochemistry at C3, C8, and C15 ( compare with Taxol on the right ) and two double bonds on the B ring ready to accept " trans "-addition.
7.
The partial synthesis in the 1930s of abundant, potent testosterone esters permitted the characterization of the hormone's effects, so that Kochakian and Murlin ( 1936 ) were able to show that testosterone raised nitrogen retention ( a mechanism central to anabolism ) in the dog, after which Allan Kenyon's group was able to demonstrate both anabolic and androgenic effects of testosterone propionate in eunuchoidal men, boys, and women.
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