Antitumor-active 2-alkoxyestradiol sulfamates

Abstract

The present invention relates to the use of 2-alkoxyestrogen sulfamates of general formula I wherein R1 and R2 independently represent H, methyl, C1-C4 acyl, benzoyl R3 represents C1-C4 alkyl or a group of formula CnFmHo, wherein n=1, 2, 3, 4, 5 or 6, m>1, and m+o=2n+1, R4 and R5 in each case represent H or, together, a methylene group or an additional double bond, R6 represents H, R7 represents OH, OC1-C4-alkyl, OC1-C11-acyl or OSO2NR1R2, the dashed lines in the B and C rings of the steroid skeleton additionally representing up to two double bonds, for the production of a medical drug for the treatment of tumor diseases which can be affected positively by inhibiting the tubulin polymerization. The inventive compounds are distinguished by the 2-alkoxy substitution in conjunction with the 17-hydroxy substitution. They have a special effect with regard to inhibiting tubulin polymerization and can be used, for example, for the treatment of prostate cancers.

Dependencies are inferred from the claim text.