Die carboxylierten Vinylacetylene (I) und (II) werden in Tetrachlorkoh1enstoff an der Doppel‐ und an der Dreifachbindung zu (III) und (V) bzw. (IV) und (VI) bromiert.
302ChemInform Abstract Starting with the isothiuronium salt (I), the title compound (IVb) is synthesized as shown in the reaction scheme. The ratio of antigonadotropic to uterotropic effect (ED2k:ED50) for (IVb) is twice as great as for the formerly tested D-homo-8-isoestrone. (1H-, 13C-NMR-data).
Die Addition des Cyclopentadiens (II) an die En‐in‐ketone (I) und (V) erfolgt nur an der Doppelbindung zu Norbornenen, und zwar erhält man aus (I) und (II) Gemische der trans‐Isomeren (III) und (IV), aus (V) und (II) Gemische der cis‐Isomeren (VI) und (VII).
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