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N,N'-Dialkyl-1,2-bis(hydroxyphenyl)ethylenediamines and N,N-dialkyl-4,5-bis(4-hydroxyphenyl)imidazolidines: syntheses and evaluation of their mammary tumor inhibiting activity.

作者信息

von Angerer E, Egginger G, Kranzfelder G, Bernhauer H, Schönenberger H

出版信息

J Med Chem. 1982 Jul;25(7):832-7. doi: 10.1021/jm00349a013.

DOI:10.1021/jm00349a013
PMID:6809943
Abstract

Diastereomeric N,N'-dialkyl-1,2-bis(hydroxyphenyl)ethylenediamines (5) were synthesized and tested for their affinity for the estradiol receptor. Only the (+/-)-1,2-bis(4-hydroxyphenyl)ethylenediamines with the alkyl groups C3H7 [(+/-)-5c, Ka = 1.1 x 19(6))], C4H9 [(+/-)-5e,Ka = 3.6 x 10(6)], and C5H11 [(+/-)-5h, Ka = 2.2 x 10(6)] showed a marked affinity, which is mainly due to the (+) enantiomers [e.g., (+)-5e, Ka = 2.1 x 10(7)]. No enhancement of affinity by cyclization to imidazolidines [e.g., (+/-)-trans-7a, Ka = 1.2 x 10(7)] was observed. These compounds [e.g., (+/-)-, (+)-, and (-)-5e], which did not produce any uterine response in the mouse, were able to inhibit weakly the growth of the DMBA-induced mammary carcinoma of the rat. The inhibitory effect of (+/-)-5e against MCF-7 cells, which can be overcome by hexestrol, makes a direct antiestrogenic mode of action probable, since general cytotoxic effects and a central action could be ruled out.

摘要

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