Improved synthesis of mestranol and ethinyl estradiol (EE) related degradation products as authentic references
作者:Hongqi Li、Yanxi Song、Xianfu Peng
DOI:10.1016/j.steroids.2007.12.024
日期:2008.5
Preparative chemical methods for the synthesis of 10 degradation or photodecomposition products of mestranol and ethinyl estradiol (EE) are described. The synthesized compounds are useful as reference materials and standards for pharmaceutical analysis of mestranol and EE as bulk chemical or in formulated product. New synthetic methods were presented and the known synthetic procedures were improved. Detailed structural characterization of the degradation or photodecomposition products of mestranol and EE and related compounds was reported. (C) 2007 Elsevier Inc. All rights reserved.
Mestranol: The assignment of its 1H and 13C NMR spectra by means of two-dimensional NMR spectroscopy, and its photochemical decomposition
作者:Adrianus C.J. Sedee、Gerardus M.J. Beijersbergen van Henegouwen、Monique E. de Vries、Cornelis Erkelens
DOI:10.1016/0039-128x(85)90040-6
日期:1985.2
The 1H- and 13C-nmr spectra of mestranol were assigned with the help of a 2 D-J-resolved, a 2D spin echo J-correlated (SECSY) and a 2D 1H-13C hetero-shift correlation experiment. The analysis of the spectra facilitated the identification of some of the photodecomposition products of mestranol. It was shown that, upon irradiation with UV-B light in water-ethanol (1:1, v/v), products are formed by oxidation of rings B and C of the steroid.
US4029648A
申请人:——
公开号:US4029648A
公开(公告)日:1977-06-14
Doussot, Joel; Garreau, Robert; Dallery, Laurence, Bulletin de la Societe Chimique de France, 1995, vol. 132, p. 59 - 66