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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

Angerer, Erwin von ; Egginger, Guenter ; Kranzfelder, Gerhard ; Bernhauer, Horst ; Schönenberger, Helmut



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 (+) ...

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