Angerer, E. von and Knebel, N. and Kager, M. and Ganss, B. (1990) 1-(aminoalkyl)-2-phenylindoles as novel pure estrogen antagonists. Journal of medicinal chemistry 33 (9), pp. 2635-2640.
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A number of 1-(omega-aminoalkyl)-5-hydroxy-2-(4-hydroxyphenyl)indoles were synthesized and studied for their binding affinities for the calf uterine estrogen receptor and estrogen antagonistic activities. Highest binding affinities were found with derivatives bearing a methyl group in position 3 and a hexamethylene chain between the indole and amino nitrogen atoms. Values for relative binding affinity (RBA) are between 20 and 30 for derivatives 5b, 5c, 5f, and 5h (17 beta-estradiol = 100). In the mouse uterine weight test, no significant agonistic (estrogenic) activity was observed up to a daily dose of 125 micrograms/animal, except for derivatives 5c, 5j, and 5l. 2-Phenylindoles with amino (5b), pyrrolidino (5f), piperidino (5h), and morpholino (5k) groups as the amino function completely suppressed estrone-stimulated uterine growth as a dose of 125 micrograms/animal (100% antagonism). Therefore, these derivatives can be considered as first examples of nonsteroidal pure antiestrogens.
|Institutions:||Chemistry and Pharmacy > Institute of Pharmacy > Pharmaceutical/Medicinal Chemistry II (Prof. Buschauer)|
|Subjects:||500 Science > 570 Life sciences|
500 Science > 540 Chemistry & allied sciences
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Owner:||Prof. Armin Buschauer|
|Deposited On:||10 Dec 2008 15:45|
|Last Modified:||05 Aug 2009 15:48|
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