The Crystal Structure of 3-Methoxy-16-hydroxy-13[alpha]-estra-1, 3, 5 (10), 15-tetraen-17-one p-Bromobenzoate

The Crystal Structure of 3-Methoxy-16-hydroxy-13[alpha]-estra-1, 3, 5 (10), 15-tetraen-17-one p-Bromobenzoate

The crystal structure of the titled compound (IVb) has been determined by threedimensional X-ray analysis from the diffractometer data. Crystals are monoclinic, a=14.494 (10), b=6.586 (3), c=12.420 (8) Å, β=111.89 (2)°, U=1100.1 Å3, Z=2, space group P21. Conformation of ring C has proved to be somew...

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Veröffentlicht in:Chemical & pharmaceutical bulletin 1975-02, Vol.23 (2), p.320
Hauptverfasser: NAMBARA, TOSHIO, KUDO, TOSHIHIRO, HOSODA, HIROSHI, IITAKA, YOICHI, KIKUTANI, NORIHISA
Format: Artikel
Sprache:eng
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Zusammenfassung:The crystal structure of the titled compound (IVb) has been determined by threedimensional X-ray analysis from the diffractometer data. Crystals are monoclinic, a=14.494 (10), b=6.586 (3), c=12.420 (8) Å, β=111.89 (2)°, U=1100.1 Å3, Z=2, space group P21. Conformation of ring C has proved to be somewhat distorted boat from. The relative ease with which 16, 17-diketo-C/D-cis steroids do enolize has been interpreted in terms of conformational change.
ISSN:0009-2363
1347-5223