Novel compounds of the general formula I ##STR1## and the pharmacologically tolerable addition salts thereof with acids are described, in which either Ia) R.sup.11 represents a hydrogen atom in the .beta.-configuration and each of R.sup.12 and R.sup.13 represents a hydrogen atom, or Ib) R.sup.11 represents a hydrogen atom in the .beta.-configuration and R.sup.12 and R.sup.13 together represent a second bond, or Ic) R.sup.11 and R.sup.12 together represent a second bond and R.sup.13 represents a hydrogen atom, or Id) R.sup.11 represents a hydrogen atom in the .alpha.-configuration and R.sup.12 and R.sup.13 together represent a second bond, and in Ia), Ib), Ic) or Id) X represents an oxygen atom, the hydroxyimino grouping >N.about.OH or two hydrogen atoms, R.sup.1 represents a hydrogen atom or a methyl group, R.sup.2 represents a hydroxy group, a C.sub.1 -C.sub.10 -alkoxy group or a C.sub.1 -C.sub.10 -acyloxy group, and R.sup.3 and R.sup.4 have the meanings customary for competitive progesterone antagonists specified in the description. The invention relates also to processes for the preparation of the novel compounds, to pharmaceutical compositions containing those compounds, to their use for the manufacture of medicaments, and to the novel intermediates required for the process. The novel compounds have a strong affinity for the gestagen receptor and exhibit pronounced antigestagenic and also antiglucocorticoid, antimineralocorticoid and antiandrogenic properties.