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-ETHYNYL GROUP FROM THE ANTIFERTILITY STEROID, NORETHINDRONE
1 Chemistry and Life Sciences Laboratory, Research Triangle Institute, Research Triangle Park, North Carolina
The metabolic removal of the 17
-ethynyl group from the antifertility steroid l7
-ethynyl-17
-hydroxy-estr-4-en-3-one to give estr-4-ene-3, 17-dione has been shown to occur when the former was incubated with a 10,000 x g supernatant from rabbit liver.