Synthesis and Evaluation of B-, C-, and D-Ring-Substituted Estradiol Carboxylic Acid Esters as Locally Active Estrogens
作者:David C. Labaree、Jing-xin Zhang、Heather A. Harris、Craig O'Connor、Toni Y. Reynolds、Richard B. Hochberg
DOI:10.1021/jm0204340
日期:2003.5.1
great influence on hormonal activity and esterase hydrolysis. Formateesters at 7alpha and 15alpha were good estrogens, but lengthening the chain to acetate dramatically decreased hormonal activity. However, the 7alpha-formate esters were not enzymatically hydrolyzed. At 11beta, the acetate (methyl ester) was an effective estrogen, but increasing the chain length to propionate dramatically reduced hormonal
15Alpha-substituted estradiol carboxylic acid esters as locally active estrogens
申请人:YALE UNIVERSITY
公开号:US20040198711A1
公开(公告)日:2004-10-07
The present invention relates to analogs of estradiol, which, in their most preferred embodiment, act as locally active estrogens without significant systemic action. A series of 15&agr;-estradiol ester compounds is presented which exhibit excellent biological activity for use in pharmaceutical compositions for the treatment of symptomology associated with menopause. The present invention is therefore directed to compounds according to the structure:
1
where X is
2
R is H, a C
1
to C
5
alkyl group, optionally substituted with at least one halogen group, such as CH
2
CH
2
F, or other group (e.g., CH
2
CHF
2
, CH
2
CF
3
or CF
3
group); and
m is from 0-5, preferably from 0-2.