Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8134026 | Process for the preparation of Cilastatin and sodium salt The present invention relates to an improved process for the preparation of Cilastatin Sodium of formula (I). The present invention also provides an isolation technique for Cilastatin acid from the reaction mixture. ... | 03/13/2012 |
| 8076505 | Process of preparing derivatives of 1-(2-halobiphenyl-4-yl)-cyclopropanecarboxylic acid Compounds represented by formula (I): may be conveniently prepared by a process in which a Suzuki reaction is performed as an early step. ... | 12/13/2011 |
| 7723539 | Catalysts based on metal complexes for the synthesis of optically active chrysanthemic acid Catalysts are described based on metal complexes derived from optically active s compounds, chosen from the classes consisting of bisoxazolines and salicylaldimines supported on an organic or inorganic matrix and employed in particular for the synthesis of optically... | 05/25/2010 |
| 7629490 | Process for hydrolysing cyclopropanecarboxylic esters to the free acid The present invention relates to an improved process for preparing cyclopropanecarboxylic acid and alcohols. ... | 12/08/2009 |
| 7476760 | Purification and production methods of 1-aminocyclopropanecarboxylic acid A method purifies 1-aminocyclopropanecarboxylic acid by subjecting a crude 1-aminocyclopropanecarboxylic acid to crystallization with a solvent mixture containing an organic acid having one to five carbon atoms and a poor solvent for 1-aminocyclopropanecarboxylic ac... | 01/13/2009 |
| 7314890 | Sulfonamides The present invention provides wherein R1 is selected from the group consisting of C1-C10 alkoxy, OH and NR4R5; R2 | 01/01/2008 |
| 7288674 | Optically active bisoxazoline compounds, process for production of the same and use thereof Optically active bisoxazoline compounds represented by the general formula (1), a process for producing the compounds, and a process for producing cyclopropanecarboxylic esters by using the same: wherein R1 ... | 10/30/2007 |
| 7276622 | Method for producing oxygen-containing compound It is provided that a method for producing an oxygen-containing compound, characterized in that an olefin compound having a carbon-carbon double bond which is bonded to a methyl or methylene group is reacted with an organic hydroperoxide in the presence of an ionic ... | 10/02/2007 |
| 7271268 | Process for preparation of [1-(mercaptomethyl)cyclopropyl]acetic acid and related derivatives The present invention provides a novel process for preparing [1-(mercaptomethyl)cyclopropyl]acetic acid with high purity and related derivatives. ... | 09/18/2007 |
| 7262320 | Process for production of 3,3-dimethyl-2-formylcyclopropanecarboxylic acid derivatives A process for the production of a 3,3-dimethyl-2-formylcyclopropanecarboxylic acid derivative of formula (2): wherein R is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or subst... | 08/28/2007 |
| 7232845 | Active substance combinations comprising insecticidal and acaricidal properties The invention relates to novel active compound combinations of certain cyclic ketoenols and certain insecticidally active compounds that together have very good insecticidal and acaricidal properties. ... | 06/19/2007 |
| 7173151 | Cycloalkyl-substituted alkanoic acid derivatives, processes for their preparation and their use as pharmaceuticals The invention relates to arylcycloalkyl-substituted derivatives and to their physiologically acceptable salts and physiologically functional derivatives. What is described are compounds of the formula I, i... | 02/06/2007 |
| 7091233 | Active substance combinations comprising insecticidal and acaricidal properties The invention relates to novel active compound combinations of certain cyclic ketoenols and certain insecticidally active compounds that together have very good insecticidal and acaricidal properties. ... | 08/15/2006 |
| 7081481 | Excitatory amino acid receptor modulators Compounds of the formula (I) in which: R1 is (CH2)nY; n is 1 or 2; Y is NHSO2R2 or X1—W—X2—R3; X1 is O or NH; W is C═O, C═S, C═NH, or SO2; X | 07/25/2006 |
| 7060728 | 11,12-oxidoarachidonic acid derivatives and methods of their use in treating dry eye disorders 11,12-Oxidoarachidonic acid derivatives and methods of their use for treating dry eye are disclosed. ... | 06/13/2006 |
| 6994866 | Combinations of active ingredients, which exhibit insecticidal and acaricidal properties The invention relates to novel active compound combinations having very good insecticidal and acaricidal properties and containing (a) cyclic ketoenols having the formula in... | 02/07/2006 |
| 6909014 | Intermediates for the synthesis of ether compounds The present invention relates to novel ether compounds, compositions comprising ether compounds, and methods useful for treating and preventing cardiovascular diseases, dyslipidemias, dysproteinemias, and glucose metabolism disorders comprising administering a compo... | 06/21/2005 |
| 6750370 | Process for racemizing optically active vinyl-substituted cyclopropanecarboxylic acid compound There is disclosed a process for the racemization of a vinyl-substituted cyclopropanecarboxylic acid or a derivative thereof, which is characterized by reacting an optically active vinyl-substituted cyclopropanecarboxylic acid compound of formula (1): | 06/15/2004 |
| 6710206 | Poly(3-cyclopropyl-3-hydroxypropionate) and processes for its preparation and derivatives thereof Poly(3-cyclopropyl-3-hydroxypropionates) (I) which are useful for the preparation of vinylcyclopropane and cyclopropylacetylene are disclosed. Methods for the preparation of a variety of intermediates obtained from (I) such as 3-cyclopropyl-3-hydroxypropionic acid a... | 03/23/2004 |
| 6700012 | Antihistaminic piperidine derivatives and intermediates for the preparation thereof This invention relates to compounds of the formula: ##STR1## wherein R1 is H or C1 -C6 alkyl and the C1 -C6 alkyl moiety is straight or branched; R2 and R3 are each independen... | 03/02/2004 |
| 6635784 | Process for the preparation of enantiomerically-enriched cyclopropylalanine derivates Disclosed are processes for the preparation of enantiomerically-enriched cyclopropylalanine derivatives by the hydrogenation of certain enamides in the presence of a catalyst comprising a transition metal and a substantially enantiomerically-pure bis-phos... | 10/21/2003 |
| 6512140 | Process for the preparation of 1-(mercaptomethyl)-cyclopropaneacetic acid A process for the preparation of highly pure 1-(mercaptomethyl)-cyclopropaneacetic acid is described. Treatment of 1-(hydroxymethyl)-cyclopropaneacetonitrile with an acid provides the corresponding imino ester and/or halo-amide, which when reacted with ... | 01/28/2003 |
| 6504052 | Excitatory amino acid receptor modulators Compounds of the formula (I) in which R1 is C1-10 allyl; C2-10 alkenyl; C2-10 alkynyl; phenyl-C2-10 alkyl or phenyl-C2-10 alkenyl; and salts and esters thereof, modulate metabotropic glutam... | 01/07/2003 |
| 6495606 | Nitric oxide synthase inhibitors The present invention relates to novel amidino compounds of formula (I), ##STR1## or a salt, solvate, or physiologically functional derivative thereof; wherein R1 is selected from C1-4 alkyl, C3-4 cycloalkyl, C1-4 hy... | 12/17/2002 |
| 6458844 | Diphenyl carbocyclic thioamide derivatives It has been discovered that compounds of the formula: ##STR1## and the pharmaceutically acceptable salts and esters thereof wherein X and Y are as defined below, inhibit the binding of VCAM-1 to VLA-4 and are useful in treating inflammation associated wit... | 10/01/2002 |
| 6417389 | Process for the preparation of HPB esters This invention relates to a novel advantageous process for the stereoselective preparation of 2-hydroxy-4-phenylbutyrates (HPB esters) and of their precursors. This is done by starting from readily accessible -unsaturated -hydroxy-γ-keto es... | 07/09/2002 |
| 6414181 | Process of producing cyclopropanecarboxylate compounds Provided are processes of producing a cyclopropanecarboxylate compound of Formula (I): ##STR1## The processes comprise reacting a cyclopropanecarbaldehyde compound of Formula (II): ##STR2## with a dicarboxylate compound of Formula (III): ##STR3#... | 07/02/2002 |
| 6359164 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the preparation of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one;... | 03/19/2002 |
| 6355689 | Nitric oxide synthase inhibitors The present invention relates to novel amidino compounds of formula (I), ##STR1## or a salt, solvate, or physiologically functional derivative thereof; wherein R1 is selected from C1-4 alkyl, C3-4 cycloalkyl, C1-4 hy... | 03/12/2002 |
| 6344483 | Halogenated amidino amino acid deviratives useful as nitric oxide synthase inhibitors The current invention discloses halogenated amidino amino acid derivatives useful as nitric oxide synthase inhibitors, and pharmaceutically acceptable salts thereof.... | 02/05/2002 |
| 6313364 | Synthesis of cyclopropaneacetylene using a catalytic decarboxylation reaction The present invention relates to a process for the preparation of cyclopropaneacetylene by the two step process: (1) an alkylation of propiolic acid with a 1,3-disubstituted propane followed by a cycloalkylation to give a 3-cyclopropaneacetylene carboxyli... | 11/06/2001 |
| 6297410 | Process for the preparation of cyclopropylacetylene The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-ben zoxazin-2-one; a... | 10/02/2001 |
| 6268525 | Process for producing optically active chrysanthemic acid The present invention provides an advantageous method for producing an optically active chrysanthemic acid. Disclosed is a method for producing an optically active chrysanthemic acid whose trans isomer ratio and optical purity are improved, which comprise... | 07/31/2001 |
| 6245919 | Cyclopropylglycine derivatives and agonists for metabotronic L-glutamate receptors A cyclopropylglycine derivative having the following formula: ##STR1## and an intermediate compound for the synthesis of the cyclopropylglycine derivative are novel compounds. The cyclopropylglycine derivative shows a selectivity higher than that of the k... | 06/12/2001 |
| 6215023 | Process for the preparation of cyclopropane carboxylic acids Preparation of cyclopropane carboxylic acids usable as intermediates and of formula (II), wherein R1 represents halogen, preferably Cl or Br, or haloalkyl, preferably CF3, and X2 represents halogen, preferably Cl or Br, wh... | 04/10/2001 |
| 6207854 | Preparation of 3-amino-3-cyclopropylpropanoate esters Disclosed a process for preparing substantially enantiomerically pure 3-amino-3-cyclopropylpropanoate esters, i.e., esters of 3-amino-3-cyclopropylpropanoic acid (3-cyclopropylalanine esters or 3-CPA esters) by a 5-step process wherein cyclopropanecarboxa... | 03/27/2001 |
| 6166247 | Method for preparing cyclopropanecarboxylic acids The invention relates to a novel method for preparing cyclopropanecarboxylic acids by acidolysis of the corresponding esters, using an alkylbenzenesulfonic acid represented by the formula: ##STR1## as the reaction catalyst, where m+n is 5 to 15. Proc... | 12/26/2000 |
| 6160134 | Process for preparing chiral cyclopropane carboxylic acids and acyl guanidines A process is provided for preparing chiral cyclopropane carboxylic acids, preferably of the structure ##STR1## which are intermediates used in preparing acyl guanidine sodium/proton exchange (NHE) inhibitors.... | 12/12/2000 |
| 6130350 | Process for producing 2-fluorine-1-cyclopropane carboxylic acid derivatives by reductive dehalogenation Cyclopropanecarboxylic acid derivatives are prepared by reacting halogenocyclopropanecarboxylic acid derivatives with metals in the presence of bases and with or without addition of hydrogen in an advantageous manner if the base is added during the reacti... | 10/10/2000 |
| 6103929 | Process for the preparation of cyclopropylglycine Disclosed is a process for the preparation of cyclopropylglycine by a 5-step process wherein cyclopropanecarboxaldehyde is reacted with an -aminoalkylaromatic compound to obtain an imine which is reacted with a cyanide to produce an aminonitrile co... | 08/15/2000 |
