Schering Aktiengesellschaft

Kunhard Pollow

Henry Laurent

Rudolf Wiechert

Helmut Hofmeister

Paul E Schulze

Walter Elger

Klaus Nickisch

Klaus Annen

Paul-Eberhard Schulze

Hans-Joerg Grill

Hans J Grill

Bernhard Manz

Estrane and androstane derivatives of formula I ##STR1## wherein X is bromine, iodine, triphenyltin or trialkyltin of 1 to 6 carbon atoms per alkyl radical,

Estrane and androstane derivatives, process for producing them and

Novel, multiple-tritiated steroid-20,17-spirolactones of general Formula I ##STR1## wherein --A--B-- is --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- or ##STR2## and --C--D-- is ##STR3## R is hydrogen or tritium and n is 0 or 1, are usable as tracer materials for the detection of mineralocorticoid receptors.

Multiply-tritiated steroidal-20,17-spirolactones and their use as tracer

17.alpha.-bromo-.alpha. and 17.alpha.-iodo-vinyl-estrane derivatives of general formula I ##STR1## wherein X is a bromine or iodine atom in Z or E position,

Estrogenic 17.alpha.-halogen-vinylestranes

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Mainz-Hechtsheim, Germany

Kunhard Pollow