Antiestrogens. Synthesis and evaluation of mammary tumor inhibiting activity of 1,1,2,2-tetraalkyl-1,2-diphenylethanes
摘要:
Among the newly synthesized 1,1,2,2-tetraalkyl-1,2-diphenylethanes, 1,1,2,2-tetramethyl-1,2-bis(4'-hydroxyphenyl)ethane (23) and 1,1,2,2-tetramethyl-1,2-bis(3'-hydroxyphenyl)ethane (26) were the most active compounds regarding estradiol receptor affinity, exhibiting Ka values of 0.73 X 10(8) and 0.67 X 10(8) M-1, respectively. In vivo, 23 and 26 showed only very small uterotrophic activity in the mouse. They strongly inhibited (73%) the estrone-stimulated mouse uterine growth. Tested on the 9,10-dimethyl-1,2-benzanthracene induced hormone-dependent mammary adenocarcinoma of the Sprague-Dawley rat, compounds 23 and 26 exhibited a dose-dependent inhibition of the tumor growth, having a strong effect at a dose of 20 (mg/kg)/day (compound 23).
HARTMANN R. W.; KRANZFELDER G.; ANGERER E.; SCHOENEBERGER H., J. MED. CHEM., 1980, 23, NO 8, 841-848
作者:HARTMANN R. W.、 KRANZFELDER G.、 ANGERER E.、 SCHOENEBERGER H.
DOI:——
日期:——
Antiestrogens. Synthesis and evaluation of mammary tumor inhibiting activity of 1,1,2,2-tetraalkyl-1,2-diphenylethanes
作者:Rolf W. Hartmann、Gerhard Kranzfelder、Erwin Von Angerer、Helmut Schoenenberger
DOI:10.1021/jm00182a006
日期:1980.8
Among the newly synthesized 1,1,2,2-tetraalkyl-1,2-diphenylethanes, 1,1,2,2-tetramethyl-1,2-bis(4'-hydroxyphenyl)ethane (23) and 1,1,2,2-tetramethyl-1,2-bis(3'-hydroxyphenyl)ethane (26) were the most active compounds regarding estradiol receptor affinity, exhibiting Ka values of 0.73 X 10(8) and 0.67 X 10(8) M-1, respectively. In vivo, 23 and 26 showed only very small uterotrophic activity in the mouse. They strongly inhibited (73%) the estrone-stimulated mouse uterine growth. Tested on the 9,10-dimethyl-1,2-benzanthracene induced hormone-dependent mammary adenocarcinoma of the Sprague-Dawley rat, compounds 23 and 26 exhibited a dose-dependent inhibition of the tumor growth, having a strong effect at a dose of 20 (mg/kg)/day (compound 23).