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Class Information
Number: 544/358
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) > The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) > 1,4-diazines > Piperazines (i.e., fully hydrogenated 1,4-diazines)
Description: Compounds wherein the six-membered hetero ring, having nitrogens in the 1- and 4-positions, has single bonds only between ring members, i.e., piperazines.

Sub-classes under this class:

Class Number Class Name Patents
544/359 Additional hetero ring containing 448
544/380 Polycyclo-carbocyclic ring system having at least three cyclos 160
544/382 Nitrogen attached directly to the piperazine ring by nonionic bonding 119
544/383 Chalcogen attached directly to piperazine ring nitrogen by nonionic bonding 284
544/384 Chalcogen bonded directly to piperazine ring carbon 178
544/386 Having -c(=x)-, wherein x is chalcogen, bonded directly to the piperazine ring 285
544/392 Phenyl or naphthyl bonded directly to ring nitrogen of the piperazine ring 304
544/396 Plural carbocyclic rings bonded directly to the same acyclic carbon 153
544/398 Chalcogen attached indirectly to the piperazine ring by nonionic bonding 355
544/402 Nitrogen attached indirectly to the piperazine ring by nonionic bonding 307
544/403 Carbocyclic ring containing 163
544/404 N-hydrocarbyl piperazines 85

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8710059 N-phenyl-(homo)piperazinyl-benzenesulfonyl or benzenesulfonamide compounds suitable for treating disorders that respond to the modulation of the serotonin 5-HT.sub.6 receptor Apr. 29, 2014
8710062 Piperazinedione compounds Apr. 29, 2014
8685979 Oligomer-diarylpiperazine conjugates Apr. 1, 2014
8686008 Highly selective sigma receptor ligands Apr. 1, 2014
8679773 Kits pertaining to analyte determination Mar. 25, 2014
8680102 Pyrrole derivatives, their preparation and their therapeutic application Mar. 25, 2014
8680273 Process for the preparation of piperazinyl and diazepanyl benzamide derivatives Mar. 25, 2014
8658647 Integrin-linked kinase inhibitors Feb. 25, 2014
8653081 Certain chemical entities, compositions, and methods Feb. 18, 2014
8642596 Sulfonyl semicarbazides, semicarbazides and ureas, pharmaceutical compositions thereof, and methods for treating hemorrhagic fever viruses, including infections associated with arena viruses Feb. 4, 2014
8637520 Substituted pyridyl amide compounds as modulators of the histamine H.sub.3 receptor Jan. 28, 2014
8637709 Process for the preparation of primary amines by homogeneously catalyzed alcohol amination Jan. 28, 2014
8624027 Combination therapy for treating cancer and diagnostic assays for use therein Jan. 7, 2014
8569304 Active esters of N-substituted piperazine acetic acids, including isotopically enriched versions thereof Oct. 29, 2013
8569071 Amine-containing compound analysis methods Oct. 29, 2013
8563582 3-aminocyclopentanecarboxamides as modulators of chemokine receptors Oct. 22, 2013
8536178 Pharmaceutical composition for preventing or treating diseases associated with beta-amyloid accumulation containing morpholin or piperazine based compounds having SO.sub.3H or COOH as active i Sep. 17, 2013
8530475 Bridged aryl piperazines derivatives useful for the treatment of CNS, GI-urinary and reproductive disorders Sep. 10, 2013
8524716 Macrocyclic indoles as hepatitis C virus inhibitors Sep. 3, 2013
8497369 Spirocyclic heterocycles medicaments containing said compounds, use thereof and method for their production Jul. 30, 2013
8492163 Methods, mixtures, kits and compositions pertaining to analyte determination Jul. 23, 2013
8487135 Catalyst and process for preparing an amine Jul. 16, 2013
8476475 Premixture for preparing an absorbent for removing acidic gases from fluid streams Jul. 2, 2013
8470827 3-aminocyclopentanecarboxamides as modulators of chemokine receptors Jun. 25, 2013
8461335 Acid gas scrubbing composition Jun. 11, 2013
8436169 Process for preparing 1,4-bishydroxyethylpiperazine May. 7, 2013
8420680 NMDA receptor antagonists for neuroprotection Apr. 16, 2013
8410108 Certain chemical entities, compositions and methods Apr. 2, 2013
8404689 Heterocyclic amide compounds useful as kinase inhibitors Mar. 26, 2013
8404900 Absorbents for separating acidic gases Mar. 26, 2013
8383860 Process to selectively manufacture diethylenetriamine (DETA) or other desirable ethyleneamines via continuous transamination of ethylenediamine (EDA), and other ethyleneamines over a heterogen Feb. 26, 2013
8377869 Method of preventing adverse effects by GLP-1 Feb. 19, 2013
8367844 Microbiocidal heterocycles Feb. 5, 2013
8361426 Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases Jan. 29, 2013
8338414 Immunosuppressive agent and anti-tumor agent comprising heterocyclic compound as active ingredient Dec. 25, 2012
8329700 Pyrazine compounds as phosphodiesterase 10 inhibitors Dec. 11, 2012
8324430 Processes for preparing amines and catalysts for use therein Dec. 4, 2012
8318982 Catalyst and process for preparing an amine Nov. 27, 2012
8309740 One-pot synthesis of fluorinated ionic liquids Nov. 13, 2012
8304430 Phosphonic acid compounds as inhibitors of serine proteases Nov. 6, 2012
8299065 Antibacterial condensed thiazoles Oct. 30, 2012
8293945 Method for producing an amine Oct. 23, 2012
8287969 Isosorbide derivatives and liquid crystal displays comprising the same Oct. 16, 2012
8278489 Method for producing an amine Oct. 2, 2012
RE43688 Compositions and methods related to serotonin 5-HT1A receptors Sep. 25, 2012
8258139 Method of treatment for mental disorders Sep. 4, 2012
8252798 Purine compounds Aug. 28, 2012
8252785 Aryl sulfonamides as bradykinin-B1-receptor antagonists Aug. 28, 2012
8247401 P2X.sub.3 receptor antagonists for treatment of pain Aug. 21, 2012
8114999 Aminocarbonyl-derivatives as novel inhibitors of histone deacetylase Feb. 14, 2012

1 2 3 4 5 6 7 8 9 10 11

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