Aiming at the investigation of the mechanism of functioning of steroid estrogens a series of compounds with unnatural rings junction was synthesized. All investigated compounds exhibit a reduced uterotropic activity. It was established applying the NMR spectroscopy that 7 alpha-methyl-3-methoxy-D-homo-6-oxa-8 alpha,14 beta-estra-1,3,5(10)-trien-17a-one existed in solution in two conformations distinguished by the structure of the rings B, C, and D simultaneously. The reaction of 17-methylidene-3-methoxy-6-oxa-8 alpha-estra-1,3,5(10)-triene with hydrobromic acid in acetic acid promotes a rearrangement with the migration of a methyl group into the position 17 resulting in the formation of 17,17-dimethyl-6-oxa-8 alpha-gona-1,3,5(10),13(14)-tetraene derivatives.
[EN] PREPARATION OF 6-OXA-8ALPHA-STEROID ESTROGEN ANALOGUES - A NEW GROUP OF UNNATURAL ESTROGENS AND THEIR USE IN MEDICINE [FR] PRÉPARATION D'ANALOGUES DE L'OETROGÈNE 6-OXA-8?-STÉROÏDE - UN NOUVEAU GROUPE D'OETROGÈNES NON NATURELS ET LEUR UTILISATION EN MÉDECINE
Selivanov; Tsogoeva; Shavva, Russian Journal of Organic Chemistry, <hi>1998</hi>, vol. 34, # 9, p. 1292 - 1296
作者:Selivanov、Tsogoeva、Shavva
DOI:——
日期:——
PREPARATION OF 6-OXA-8ALPHA-STEROID ESTROGEN ANALOGUES - A NEW GROUP OF UNNATURAL ESTROGENS AND THEIR USE IN MEDICINE
申请人:Pison Ulrich
公开号:US20110160296A1
公开(公告)日:2011-06-30
The invention is related to the area of new 6-Oxa-8α-steroid estrogen analogues and the synthesis of these new biological active steroid estrogen analogues, namely, to the preparation of 6-oxa-8α-steroid estrogens and their use as estrogen receptor modulators. These new estrogen analogues are ligands for estrogen receptors and as such may be useful for the treatment and prevention of a variety of conditions related to estrogen functioning. These conditions include bone and cartilage disorders, increased levels of LDL cholesterol, cardiovascular diseases, impairment of cognitive function, cerebral degeneration disorders, endometriosis and other types of inflammation, the metabolic syndrome, and cancer, in particular of the breast, uterus and prostate.
[EN] PREPARATION OF 6-OXA-8ALPHA-STEROID ESTROGEN ANALOGUES - A NEW GROUP OF UNNATURAL ESTROGENS AND THEIR USE IN MEDICINE<br/>[FR] PRÉPARATION D'ANALOGUES DE L'OETROGÈNE 6-OXA-8?-STÉROÏDE - UN NOUVEAU GROUPE D'OETROGÈNES NON NATURELS ET LEUR UTILISATION EN MÉDECINE
申请人:TOPASS GMBH
公开号:WO2009059806A3
公开(公告)日:2009-10-29
New analogs of steroid estrogens
作者:S. N. Morozkina、S. K. Nikol’skaya、G. L. Starova、S. I. Selivanov、A. G. Shavva
DOI:10.1134/s1070428011080203
日期:2011.8
Aiming at the investigation of the mechanism of functioning of steroid estrogens a series of compounds with unnatural rings junction was synthesized. All investigated compounds exhibit a reduced uterotropic activity. It was established applying the NMR spectroscopy that 7 alpha-methyl-3-methoxy-D-homo-6-oxa-8 alpha,14 beta-estra-1,3,5(10)-trien-17a-one existed in solution in two conformations distinguished by the structure of the rings B, C, and D simultaneously. The reaction of 17-methylidene-3-methoxy-6-oxa-8 alpha-estra-1,3,5(10)-triene with hydrobromic acid in acetic acid promotes a rearrangement with the migration of a methyl group into the position 17 resulting in the formation of 17,17-dimethyl-6-oxa-8 alpha-gona-1,3,5(10),13(14)-tetraene derivatives.