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Word: sidechain (lookup in dictionary) (lookup stats)
Dates: during 1951-1951
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Usage:

Chemist Woodward emphasized the fact that his new substance is not yet cortisone. He must add another oxygen atom in the proper spot, and must exchange his carbomethoxy group for a dihydroxyacetone sidechain. In the process it will also be necessary to alter the double bonds that now join some of the atoms in his steroid (see diagram). But Chemist Woodward's cautious colleagues agree that the toughest part of the job seems to be over...

Author: /time Magazine | Title: Science: Chemical Milestone | 5/7/1951 | See Source »

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