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The steroid skeleton of the title compound, C
22H
28O
3, is almost identical to the parent molecule norethindrone. The ethynyl residue donates a C
C—H
O=C hydrogen-bond interaction with an H
O separation of 2.18 Å.
Supporting information
| Crystallographic Information File (CIF) Contains datablocks text, ka1177a |
CCDC reference: 127215
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