Patents Assigned to SANDOZ
  • Patent number: 3997556
    Abstract: Disclosed are anionic optical brightening agents, such agents being 1,3-diphenyl pyrazolines characterized by having, in the 4- or 5-position of the pyrazoline ring, a sulphoalkyl substituent, their production and use.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: December 14, 1976
    Assignee: Sandoz Ltd.
    Inventors: Ivan Joseph Bolton, Alec Victor Mercer
  • Patent number: 3997574
    Abstract: The compounds are 13-(lower)alkyl-9.alpha.-methyl-17.alpha.-propadienylgona-4-en-17.beta.-ol -3-ones and derivatives thereof, e.g. 9.alpha.-methyl-17.alpha.-propadienylestra-17.beta.-ol-3-one, and are useful as progestational agents.
    Type: Grant
    Filed: September 5, 1974
    Date of Patent: December 14, 1976
    Assignee: Sandoz, Inc.
    Inventors: Robert V. Coombs, Eugene E. Galantay
  • Patent number: 3997670
    Abstract: 1-dioxolanylpropyl-3-indoleacrylic acid esters, e.g., 1-[3-(2-methyl-2-dioxolanyl)propyl]-3-indoleacrylic acid ethyl ester, are prepared by reacting a corresponding 1-dioxolanylpropyl-3-indolecarboxaldehyde with carbalkoxymethylene triphenylphosphorane and are useful as hypolipidemic agents.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: December 14, 1976
    Assignee: Sandoz, Inc.
    Inventor: Marcel K. Eberle
  • Patent number: 3997564
    Abstract: Disclosed are compounds of the class of 1-alkyl-4-phenyl and 4-(2-thienyl)-6,7-methylenedioxy-2(1H)-quinazolinones and quinazolinthiones, including the 3,4-dihydro derivatives thereof, useful as pharmaceutical agents, e.g. as anti-inflammatory agents. Such compounds, e.g. 1-isopropyl-4-phenyl-6,7-methylenedioxy-2(1H)-quinazolinones and 1-isopropyl-4-phenyl-6,7-methylenedioxy-2(1H)-quinazolinthiones, may be prepared by reacting the corresponding N-alkyl-N-(3,4-methylenedioxyphenyl)urea or thiourea with an aromatic aldehyde, e.g. benzaldehyde, in the presence of an acid at elevated temperatures to obtain the 3,4-dihydro-2(1H)-quinazolinones or 3,4-dihydro-2(1H)-quinazolinthiones which may then be oxidized to the corresponding 3,4-unsaturated compounds.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: December 14, 1976
    Assignee: Sandoz, Inc.
    Inventors: George A. Cooke, William J. Houlihan
  • Patent number: 3997521
    Abstract: Compounds of the formula ##STR1## wherein each R.sub.1 is alkyl of 1 to 3 carbon atoms, andA is phenylene, substituted phenylene, diphenylene, substituted diphenylene or naphthylene, wherein each substituent of substituted phenylene is independently fluoro, chloro, bromo, methyl, methoxy, ethoxy, trifluoromethyl or cyano and each substituent of substituted diphenylene is independently chloro, bromo, methyl or methoxy,With the proviso the two CO--O--R.sub.1 groups on each ring are meta or para to each other. These compounds are eminently suitable as pigments for the mass pigmentation of synthetic polymers and resins such as polyethylene, polystyrene, polyvinyl chloride, poromerics and rubber latices.
    Type: Grant
    Filed: August 7, 1972
    Date of Patent: December 14, 1976
    Assignee: Sandoz Ltd.
    Inventors: Willy Forter, Juergen Goldmann
  • Patent number: 3997567
    Abstract: Hypolipidemic agents of the formula: ##SPC1##WhereinR is hydrogen, alkyl or halo,R' and R" are hydrogen, halo, alkyl or alkoxy, andn is 1 or 2.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: December 14, 1976
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 3996227
    Abstract: Compounds of the formula I: ##SPC1##whereinR.degree. is lower alkyl,n is 0, 1 or 2,R is lower alkyl,R' is a radical of the formula ##SPC2##In which Y and Y' are the same or different and represent hydrogen, lower alkyl, lower alkoxy, halo of atomic weight of 19 to 36 or one of Y and Y' is trifluoromethyl while the other is hydrogen, or a radical of the formula ##SPC3##In which Y" is hydrogen, fluorine, chlorine or alkyl of 1 to 3 carbon atoms,Are prepared by cyclizing a compound of formula II ##SPC4##in which R, R', R.degree. and n are as defined above, with phosgene, or,Where R is not a tertiary alkyl group in which the tertiary carbon atom is directly attached to the ring nitrogen atom, with a C.sub.1 -C.sub.2 alkyl chlorocarbonate or 1,1'carbonyldiimidazole. The compounds of formula I possess pharmaceutical activity in animals.
    Type: Grant
    Filed: June 19, 1974
    Date of Patent: December 7, 1976
    Assignee: Sandoz, Inc.
    Inventor: William G. Salmond
  • Patent number: 3996210
    Abstract: Monobenzoxazolylstilbenes of formula ##STR1## wherein R--O is lower alkoxy and stands in one of the positions 5 or 6,R.sub.1 is hydrogen or lower alkyl andR.sub.2 is hydrogen, chlorine or lower alkyl.
    Type: Grant
    Filed: June 8, 1970
    Date of Patent: December 7, 1976
    Assignee: Sandoz Ltd.
    Inventors: Fritz Fleck, Salvatore Valenti
  • Patent number: 3996371
    Abstract: The invention discloses optionally substituted 3-methylsulfinyl indazoles having pharmacological activity in animals and useful as sleep-inducing agents. The compounds may be prepared by diazotization of an optionally substituted .alpha.-methylsulfinyl-o-toluidine.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: December 7, 1976
    Assignee: Sandoz, Inc.
    Inventor: Thomas E. Jackson
  • Patent number: 3996286
    Abstract: Acyl substituted phenyl alkanoic acids, e.g. p-pivaloyl phenyl acetic acid, are prepared by hydrolyzing p-pivaloyl phenyl acetonitriles and are useful as hypolipidemic agents.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: December 7, 1976
    Assignee: Sandoz, Inc.
    Inventors: William J. Houlihan, Jeffrey Nadelson
  • Patent number: 3994714
    Abstract: N-(3-chloro-4-methoxyphenyl)-N',N'-dimethylurea of the formula: ##SPC1##Is disclosed as possessing a surprising selective herbicidal activity. A method is disclosed for selectively combating weeds in a cereal locus and in particular a barley locus, which comprises applying to the locus to be protected from weeds, a dosage of from 2 to 10 kilograms per hectare of the above compound.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: November 30, 1976
    Assignee: Sandoz Ltd.
    Inventor: Max Schuler
  • Patent number: 3994961
    Abstract: 10-(2-substituted-aminoethyl)-10,11-dihydro-5-methylene-2 or 3 7 or 8-substituted or unsubstituted-5H-dibenzo[a,d]cycloheptenes e.g., 10-(2-dimethylaminoethyl)-10,11-dihydro-5-methylene-5H-dibenzo[a,d]cyclohe ptane, prepared by various methods including acid dehydration of the corresponding dibenzo[a,d]cycloheptene-5-ols. The compounds are useful as anti-depressants.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: November 30, 1976
    Assignee: Sandoz, Inc.
    Inventors: William J. Houlihan, Jeffrey Nadelson
  • Patent number: 3995048
    Abstract: Substituted isoxazolyl benzamides, e.g., o-(3-trifluoromethyl-5-isoxazolyl)-N-methylbenzamide, are prepared by cyclizing a corresponding 1-hydroxy-1-[(2-hydroxyimino)-3-trifluoropropyl]-2-alkyl phthalimidine with a strong acid and are useful as minor tranquilizers and sleep inducers.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: November 30, 1976
    Assignee: Sandoz, Inc.
    Inventor: Jeffrey Nadelson
  • Patent number: 3994854
    Abstract: Disclosed are the compounds of the following formula I, their production and use as pigments, particularly their use in pigmenting paper, plastics and as pigments in surface coating media, ##SPC1##In which eitherR.sub.1 and R.sub.1 ', independently, signify a hydrogen or halogen atom or a nitro, cyano, methyl, alkoxy, aminocarbonyl, alkylcarbonylamino, benzoylamino, phenylamino-carbonyl, alkylamino or phenylamino radical,Or R.sub.1 and R.sub.1 ', together, signify a radical of formula a, ##SPC2##In which R.sub.5 signifies a hydrogen atom or a nitro group,R.sub.6 signifies a hydrogen or halogen atom, andR.sub.7 signifies an unsubstituted amino radical or an amino radical substituted by alkyl, phenyl, benzoyl or anthraquinonyl,Or R.sub.1 and R.sub.1 ', together, signify a radical of formula b, ##SPC3##R.sub.2, r.sub.2 ' and R.sub.3, independently, signify a hydrogen or halogen atom,n signifies 1 or 2,R.sub.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: November 30, 1976
    Assignee: Sandoz Ltd.
    Inventors: Rodolf Altiparmakian, Hans Bohler
  • Patent number: 3994894
    Abstract: Anti-inflammatory and analgesic agents of the formula I: ##SPC1##whereinR.degree. is lower alkyl,N IS 0, 1 OR 2,R is lower alkyl, alkenyl, cycloalkyl, cycloalkylalkyl or phenyl,R' is a radical of the formula ##SPC2##In which Y and Y' are the same or different and represent hydrogen, lower alkyl, lower alkoxy, halo of atomic weight of 19 to 36 or one of Y and Y' is trifluoromethyl while the other is hydrogen, or a radical of the formula ##SPC3##In which Y" is hydrogen, fluorine, chlorine or alkyl of 1 to 3 carbon atoms,Are prepared by cyclizing a compound of formula II: ##SPC4##in which R, R', R" and n are as defined above, with, for example, phosgene.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: November 30, 1976
    Assignee: Sandoz, Inc.
    Inventor: William G. Salmond
  • Patent number: 3994915
    Abstract: Benzocycloheptaoxazolones are prepared by a multi-step process starting with a lower alkyl ester of a 3-oxo-5-phenylvaleric acid. The compounds are useful as anti-inflammatories and as intermediates in the preparation of pharmaceutically useful compounds.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: November 30, 1976
    Assignee: Sandoz, Inc.
    Inventor: William G. Salmond
  • Patent number: 3994918
    Abstract: The invention discloses compounds of the class of 5-substituted-5H-dibenzo[a,d]cycloheptenes which are 5-hydrazinoalkyl- or 5-aminoalkyl-5H-dibenzo[a,d]cyclohepten-5-ols, or their 10,11-dihydro derivatives. The compounds are pharmaceutically active and useful, for example, as anti-convulsants and tranquilizers. A key intermediate are compounds which are a spiro[5H-dibenzo[a,d]cyclohepten-5-oxazolin-2-one] which are subjected to alkaline hydrolysis to obtain the compounds of the invention.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: November 30, 1976
    Assignee: Sandoz, Inc.
    Inventor: Goetz E. Hardtmann
  • Patent number: 3992396
    Abstract: 2-amino-5-(substituted or unsubstituted phenylalkyl)-thiadiazoles, e.g., 2-amino-5-(4-[phenylbutyl])-thiadiazole, prepared, e.g., by ring closure, of corresponding 1-(substituted or unsubstituted phenylalkanoyl)-thiosemicarbazide in a strong acid medium. The compounds are useful as minor tranquilizers and sedative hypnotics.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: November 16, 1976
    Assignee: Sandoz, Inc.
    Inventors: Marcel K. Eberle, Robert E. Manning
  • Patent number: 3992384
    Abstract: Substituted 1,2-dihydrobenz[f]isoquinolines, e.g., 4-(p-chlorophenyl)-1,2-dihydrobenz[f]isoquinoline, are prepared by cyclizing N-substituted-.alpha.-naphthylethylamines and are useful as non-estrogenic antifertility agents.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: November 16, 1976
    Assignee: Sandoz, Inc.
    Inventor: William J. Houlihan
  • Patent number: 3991790
    Abstract: Disclosed herein is a patient ventilator apparatus having a pneumatic control system operable in three different modes wherein the apparatus assists the breathing of the patient, controls the patient's breathing in a timed manner, or operates in a combination assist/control mode according to certain predetermined conditions. Fluidic circuitry controls a valved bellows apparatus, which in turn supplies air to a patient subject to limitations of time, volume, and pressure, wherein the gas supplied to the bellows comprises an adjustable oxygen/air mixture. Fluidic timers are provided for use in the control mode of the circuitry, and identical fluidic circuitry combinations are provided for use in the assist mode to automatically trigger the ventilator apparatus into an inspiratory state according to the patient's breathing requirements and to trigger such apparatus into an exhalation state when a predetermined inspiratory pressure is attained.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: November 16, 1976
    Assignee: Sandoz, Inc.
    Inventor: George K. Russell