The Tricyclo Ring System Consists Of A Five-membered Carbocyclic Ring Ortho Fused To Both A Six-membered Carbocyclic Ring And The Six-membered Hetero Ring (e.g., Indenopyridines, Etc.) Patents (Class 546/111)
  • Patent number: 4451398
    Abstract: Dyes of the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl or C.sub.2 -C.sub.6 -alkenyl, R.sup.2 and R.sup.3 independently of one another are hydrogen, C.sub.1 -C.sub.5 -alkyl or C.sub.2 -C.sub.5 -alkenyl, R.sup.4 is C.sub.1 -C.sub.12 -alkyl or hydroxy-C.sub.2 -C.sub.4 -alkyl, X.sup..crclbar. is one equivalent of an anion, mis from 0 to 5 and n is from 0 to 5, with 1.ltoreq.(m+n).ltoreq.5, and F is an (m+n)-valent radical of a monoazo dye, a disazo dye, a polyazo dye, a quinophthalone, a bis-dioxazine, a compound of the 5,6-arylo-2-pyrone series, a naphtholactam dye, a triphenylmethane dye, a xanthene dye, a phthalocyanine, an indigoid, an anthraquinone dye containing one or more phenyl or naphthyl groups, a more highly fused carbonyl-containing dye, a quinacridone, a perylene-3,4,9,10-tetracarboxylic acid diimide, an anthrapyrimidine, a pyrazoloanthrone, a diaminonaphthoquinone, a naphthazarine or a naphthalene-1,4,5,8-tetracarboxylic acid diimide.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: May 29, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Patsch, Manfred Ruske
  • Patent number: 4355036
    Abstract: Antihistamines of the formula ##STR1## wherein ##STR2## is a 5 or 6 membered ring which is phenyl or heterocyclic; ##STR3## is a six membered ring which is 2,3 or 4 pyridyl or is phenyl or substituted phenyl, with the proviso that is ##STR4## is a nitrogen containing ring, ##STR5## must be phenyl; Z is an alkylene chain having 0 to 2 carbon atoms in the chain, said 2 carbon chain optionally having one double bond, said chain optionally having either a carbonyl oxygen, or a hydroxy group as a substituent; W is ##STR6## wherein p is 1 or 2 and n is 1 or 2, R.sup.1 is C.sub.1 to C.sub.6 alkyl, R.sup.2 is hydrogen or C.sub.1 to C.sub.6 alkyl, and the dotted line represents an optical double bond, R.sup.2 being absent if the double bond is present, and Y is substituted carboxylate or substituted sulfonyl. Said antihistamines have little or no sedative effects.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: October 19, 1982
    Assignee: Schering Corporation
    Inventor: Frank J. Villani
  • Patent number: 4180666
    Abstract: Preparation and use of anticonvulsant 3,9-dihydro-3,9-dioxo-2H-indeno[2,1-c]pyridine-4-(carbonitriles/carboxamid es) are disclosed.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: December 25, 1979
    Assignee: G. D. Searle & Co.
    Inventor: Robert J. Chorvat