Abstract: Compounds of the tautomeric formula Ia, Ib or Ic, ##STR1## where R is a radical of the formula ##STR2## are effective compounds for the treatment and prophylaxis of degenerative bone disorders. They are used as pharmaceuticals.

Abstract: Guanidinealkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their useCompounds of the tautomeric formula Ia, Ib or Ic, ##STR1## where R is a radical of the formula ##STR2## are effective compounds for the treatment and prophylaxis of degenerative bone disorders. They are used as pharmaceuticals.

Abstract: Compounds of the tautomeric formula Ia, Ib or Ic, ##STR1## where R is a radical of the formula ##STR2## are effective compounds for the treatment and prophylaxis of degenerative bone disorders. They are used as pharmaceuticals.

Abstract: Novel indanes in all possible stereoisomer forms of the formula ##STR1## wherein the substrates are as defined in the application and their non-toxic, pharmaceutically acceptable acid addition salts and their hydrates are disclosed as having central analgesic properties as well as antiarrhythmic and diuretic activities.

Abstract: The invention describes tautomeric compounds of the formula Ia, Ib or Ic ##STR1## and/or their physiologically tolerable salts, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are a hydrogen atom, substituted (C.sub.1 -C.sub.7)-alkyl, (C.sub.3 -C.sub.10)-cycloalkyl, substituted phenyl or (C.sub.1 -C.sub.4)-alkylphenyl, R.sup.2 is substituted phosphoric acid, R.sup.2 and R.sup.3, R.sup.2 and R.sup.5 or R.sup.4 and R.sup.5 form a monocyclic 5- to 7-membered saturated or unsaturated heterocyclic ring which is mono- or polysubstituted, R.sup.8, R.sup.9, R.sup.10 and R.sup.11 are a hydrogen atom or (C.sub.1 -C.sub.5)-alkyl, X is a hydrogen atom, hydroxyl or halogen, l and n are an integer from 0 to 7, m is an integer from 0 to 2, and the sum of the numbers l, m and n is less than or equal to 10, a process for the preparation of the compounds of the formula Ia, Ib or Ic, pharmaceuticals and their use for the prophylaxis or treatment of osteoporosis.

Abstract: Novel all possible enantiomeric and diastereoisomeric forms of compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, halogen, alkyl and alkoxy of 1 to 5 carbon atoms, --No.sub.2, --NH.sub.2 and mono and dialkylamino of 1 to 5 alkyl carbon atoms, A and B have the trans configuration, one of A and B being ##STR2## R.sub.2 is hydrogen or alkyl of 1 to 5 carbon atoms, Z is --(CH.sub.2).sub.n2, n.sub.2 being an integer from 0 to 5 or branched alkylene of 2 to 8 carbon atoms or --CH.sub.2 --O--, Y is selected from the group consisting of phenyl, naphthyl, indenyl, heteromonocycle of 5 to 6 ring atoms and heterobicycle, all optionally having at least one substituent and the other of A and B is ##STR3## R.sub.4 and R.sub.

Abstract: Novel all possible enantiomeric and diastereoisomeric forms of compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, halogen, alkyl and alkoxy of 1 to 5 carbon atoms, --NO.sub.2, --NH.sub.2 and mono and dialkylamino of 1 to 5 alkyl carbon atoms, n is 1 or 2, A and B have the trans configuration, one of A and B being ##STR2## R.sub.2 is hydrogen or alkyl of 1 to 5 carbon atoms, Z is --(CH.sub.2)--.sub.n2, n.sub.2 being an integer from 0 to 5 or branched alkylene of 2 to 8 carbon atoms or --CH.sub.2 --O--, Y is selected from the group consisting of phenyl, naphthyl, indenyl, heteromonocycle of 5 to 6 ring atoms and heterobicycle, all optionally having at least one substituent and the other of A and B is ##STR3## R.sub.4 and R.sub.

Abstract: Novel 10.beta.-alkynyl-steroids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, optionally substituted alkyl and alkoxy of 1 to 8 carbon atoms, optionally substituted alkenyl and alkynyl of 2 to 8 carbon atoms, optionally substituted aryl and aralkyl, optionally esterified carboxy, dialkylamino with alkyl of 1 to 6 carbon atoms, halogen and trialkylsilyl of 1 to 7 alkyl carbon atoms, R.sub.6 and R.sub.7 taken together with the carbon atoms to which they are attached form cyclopropyl or R.sub.6 is hydrogen and R.sub.7 is R.sub.1, R.sub.1 is selected from the group consisting of hydrogen, optionally substituted alkyl of 1 to 6 carbon atoms, optionally substituted alkenyl and alkynyl of 2 to 6 carbon atoms and acetylthio, R.sub.

Abstract: Novel 10-substituted steroids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl and substituted alkyl of 1 to 8 carbon atoms, alkenyl, substituted alkenyl, alkynyl and substituted alkynyl of 2 to 8 carbon atoms, aryl and substituted aryl, aralkyl and substituted aralkyl, protected hydroxy, optionally esterified carboxy, --NH.sub.2, protected amino, mono and di-alkyl amino of 1 to 4 alkyl carbon atoms, halogen and trialkylsilyl, R.sub.2 is methyl or ethyl, R.sub.6 and R.sub.7 together with the carbon atoms to which they are attached form cyclopropyl or R.sub.6 is hydrogen and R.sub.7 is R.sub.1, R.sub.1 is selected from the group consisting of hydrogen, alkyl and substituted alkyl of 1 to 6 carbon atoms, acetylthio and alkenyl, substituted alkenyl, alkynyl and substituted alkynyl of 2 to 6 carbon atoms, X is optionally acylated or etherified hydroxyl and Y is selected from the group consisting of hydrogen, R.sub.4, --CH.sub.2 --CH.sub.2 COOM and --CH.sub.2 --CH.sub.