Synthesis of 2-methoxy and 4-methoxy equine estrogens
作者:Pemmaraju N. Rao、Chandrasiri W. Somawardhana
DOI:10.1016/0039-128x(87)90015-8
日期:1987.4
methanolic ammonium hydroxide solution. 4-Methoxy-equilenin and 2-methoxyequilenin were prepared from the corresponding 4-iodo- and 2-iodo-7 epsilon, 8 epsilon-epoxyestrone derivatives, respectively. Nucleophilic displacement of iodine with methoxide ion was carried out as described earlier with simultaneous aromatization of the B ring leading to 4- and 2-methoxyequilenin derivatives. Alternatively, 4-methoxyequilenin
Metabolism of Equilenin in MCF-7 and MDA-MB-231 Human Breast Cancer Cells
作者:David C. Spink、Fagan Zhang、Mirza M. Hussain、Barbara H. Katz、Xuemei Liu、David R. Hilker、Judy L. Bolton
DOI:10.1021/tx000219r
日期:2001.5.1
same pathways of equilenin metabolism were observed. Equilenin was reduced at C-17 to the 17beta-dihydro form, with minimal production of the 17alpha-dihydro isomer. Both equilenin and 17beta-dihydroequilenin were hydroxylated at the C-4 position, and the resultant catechol metabolites were methylated to form 4-methoxyequilenin and 4-methoxy-17beta-dihydroequilenin. Rates of equilenin metabolism were