Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 473 - Heterocyclic compounds containing purine ring systems
Patents for C07D 473 - Heterocyclic compounds containing purine ring systems (11,932)
08/1982
08/17/1982CA1129767A1 Theophylline-(7)-alkanecarboxylic acid bonded to immunologic carriers
08/03/1982CA1128882A1 Antibiotic neplanocins
07/1982
07/27/1982CA1128509A1 Thiotanthine compounds
07/20/1982US4340726 Purine compounds having immunomodulator, antiviral antitumor and enzyme inhibitor altivity
07/20/1982CA1128040A1 Derivatives of xanthine
07/13/1982US4339452 Anticoagulants
07/08/1982WO1982002202A1 Novel derivatives of guanine
07/06/1982US4338319 3-ethylxanthine
07/06/1982US4338310 Alkoxyalkanoate esters of arabinofuranosyladenine
06/1982
06/30/1982EP0055239A1 Novel derivatives of guanine
06/23/1982EP0054215A1 (8-(Dialkylaminoalkoxy)-coffeine)-platinum complexes, process for their preparation and pharmaceuticals containing them
06/22/1982US4336188 Method for the preparation of macromolecularized adenine derivatives
06/15/1982CA1125750A1 Ketals of xanthine compounds
06/02/1982EP0052964A1 Adenine derivatives possessing pharmacological activity
06/02/1982EP0052959A1 Production of purine derivatives and intermediates therefor
05/1982
05/12/1982EP0051278A1 Soft tertiary amine esters of bio-affecting carboxylic acids, processes for preparing and a pharmaceutical composition containing the same
05/11/1982US4329459 Tetrahydrobenzopyran derivatives
05/11/1982CA1123435A1 Pharmaceutical compositions, alkenyl xanthins contained therein and process for preparing them
05/04/1982US4328227 Hypotensive agents
04/1982
04/20/1982US4325956 Method and pharmaceutical preparation for treating chronic obstructive airway disease and cardiac disease, and intermediates for the preparation of therapeutically active xanthine derivatives
04/20/1982US4325950 Platinum caffeine chloride anion complex and method
04/20/1982CA1122217A1 Immunomodulators and antiviral agents
04/14/1982EP0049494A1 Esters of 7-hydroxyalkyl-1,3-dimethyl xanthines, process for their preparation and their application as lipid diminishers
04/14/1982EP0049357A1 Caffeine extraction
04/13/1982US4324840 Extraction by water-immiscible solvent coated on adsorber
04/13/1982CA1121818A1 9-(hydroxy alkyl) purines
04/07/1982EP0049072A1 Guanine compounds and their use for the preparation of anti-viral agents
04/06/1982US4323573 Viricides
03/1982
03/23/1982US4321376 Neplanocin-B and -F
02/1982
02/10/1982EP0045503A1 Process for preparing adenine
02/03/1982EP0045094A1 Intermediates for the preparation of therapeutically active xanthine derivatives
02/03/1982EP0044932A1 Optionally N-substituted amino-deoxy-1,4;3,6-dianhydro-hexite derivatives, processes for their preparation and their application
02/03/1982EP0044927A1 Alkylamino-desoxy-1,4;3,6-dianhydro-hexite-nitrate substituted by purine bases, process for their preparation and their pharmaceutical compositions
02/02/1982CA1117419A1 Pharmaceutical compositions containing a xanthine derivative
01/1982
01/05/1982CA1115594A1 Process for extracting caffeine from solutions thereof in carbon dioxide under high pressure
12/1981
12/30/1981EP0042706A2 Xanthine derivatives, pharmaceutical compositions containing them and a process for their preparation
12/30/1981EP0042596A1 Novel adenine nucleoside derivatives, their preparation and pharmaceutical compositions containing them
12/30/1981EP0042593A1 Aryloxy-propanol amines, process for their preparation and medicines containing these compounds
12/30/1981EP0042592A1 N-heteroarylalkylene diamines, process for their preparation and their use
12/23/1981EP0042295A1 Carbon-caffeine separation
12/23/1981EP0042294A1 Adsorption decaffeination
12/02/1981EP0040712A1 Process for the removal of caffeine from green coffee and process for the recovery of caffeine
11/1981
11/24/1981US4302438 Antigen, antiserum and immunoassay for theophylline
11/18/1981EP0039780A1 Di- or trisubstituted xanthines with neuroleptic activity, process for their preparation and pharmaceutical preparations containing them
11/17/1981CA1112571A1 Therapeutic application of (s)- and (rs)-9-(2,3- dihydroxypropyl) adenine
11/10/1981US4299834 8-Phenyl-purines and pharmaceutical compositions containing same
11/10/1981US4299833 1-Isopropyl- and 1-isobutyl-3,7-dimethyl xanthine as medicaments
11/10/1981US4299832 Substituted theophylline compounds
11/03/1981US4298736 Carbon-caffeine separation
10/1981
10/28/1981EP0038784A2 3,8-Dialkylxanthines, processes for their preparation and compositions containing them
10/28/1981EP0038541A1 Novel prodrugs of biologically active agents containing mercapto groups, process for preparing and therapeutically effective composition containing the same
10/27/1981US4297494 Xanthine tracers
10/27/1981CA1111423A2 Process for purification of 9-(2,6- dihalobenzyl)adenines
10/13/1981US4294831 Antiviral activity
09/1981
09/29/1981CA1109872A2 Purine derivatives
09/29/1981CA1109871A1 Purine derivatives
09/23/1981EP0036218A2 Salts of the 3-hydroxy quinuclidine esters of a phenoxycarboxylic acid, a process for the preparation thereof, and related pharmaceutical compositions
09/23/1981EP0036077A2 Esters of hydroxylalkyl-purines, processes for preparing them and therapeutical composition containing these esters as active ingredients
09/22/1981US4291037 Promoting the flow of blood through skeletal muscles vasodilators
09/22/1981CA1109470A1 Xanthine derivatives
09/22/1981CA1109324A1 Method for the selective extraction of caffeine from vegetable materials
09/15/1981US4289776 Vasodilators, fibrinolytic
09/09/1981EP0035214A2 Process for the preparation of compounds that contain heterocyclic sulphur
09/08/1981CA1108612A1 Purine derivatives
09/01/1981US4287195 Heterocyclic derivatives of [4-(piperazin-1-yl-phenyloxymethyl)-1,3-dioxolan-2-ylmethyl]-1H-imidazoles and 1H-1,2,4-triazoles
08/1981
08/25/1981US4286093 Multistage from 7-amino-5-methylthio-(1,2,5)-oxadiazolo or thiadiazolo(3,4-d) pyrimidine
08/19/1981EP0034116A2 N-(3-phenoxy-2-hydroxypropyl)benzimidazole-1-alkanamines
08/18/1981US4284633 Derivatives of xanthine
08/12/1981EP0033674A2 Piperazine derivatives of theophylline
07/1981
07/29/1981EP0032564A1 Pharmaceutical use of caroverine and/or salts of caroverine, as well as salts of caroverine with xanthine acid remainders and nicotinic acid remainder
07/28/1981CA1105933A1 O-propyloximes
07/21/1981CA1105461A1 Process for alkylating adenine a mixture of isomers of (2,6-dihalobenzyl)adenine
07/14/1981US4278675 Bronchodilating process
07/07/1981CA1104569A1 Transient pro-drug forms of xanthine derivatives
06/1981
06/23/1981US4275064 Transient pro-drug forms of xanthine derivatives and their use as topical anti-inflammatory agents
05/1981
05/26/1981US4269839 Muscle relaxants and antispasmodic agents; respiratory system disorders
05/26/1981CA1101856A1 Process for the production of basic substituted alkyltheophylline derivatives
05/26/1981CA1101855A1 Purine derivatives
05/19/1981US4268672 Adenosine deaminase resistant antiviral purine nucleosides and method of preparation
03/1981
03/10/1981US4255458 Solvent and a gaseous component
03/04/1981EP0024290A1 8-Phenyl purines, their preparation and medicaments containing them
03/03/1981US4254266 Fluorinated heterocyclic sulfides
03/03/1981CA1096864A1 Intermediates for the preparation of derivatives of guanine and adenine
03/03/1981CA1096863A1 Improved process for preparing 9-substituted derivatives of guanine and adenine
02/1981
02/25/1981EP0024122A1 Adenine derivatives possessing pharmacological activity
02/17/1981US4251559 With supercritical carbon dioxide
02/04/1981EP0023350A1 Theophylline derivatives, a process for the preparation of the same and a therapeutical composition
02/03/1981US4249001 Hypotensive agents
01/1981
01/28/1981EP0023032A1 Process for the preparation of oxoalkylxanthines
01/20/1981US4246407 Method of making a fominoben/theophylline complex
01/13/1981US4245093 Process for the production of basic substituted alkyltheophylline derivatives
01/07/1981EP0021103A1 Theophylline derivatives, process for their preparation and medicaments containing these compounds
12/1980
12/30/1980US4242345 Vasodilators
12/23/1980US4241063 Purine derivatives and their use as bronchodilators
12/02/1980US4237288 Decaffeination of fatty materials
11/1980
11/26/1980EP0019165A1 Process for preparing 1,3,7-trialkylxanthines
11/11/1980US4233303 Xanthine derivatives
11/04/1980US4232155 Purine compounds
10/1980
10/29/1980EP0018136A1 Xanthine derivatives, a process for their preparation and their use in pharmaceutical compositions
10/29/1980EP0018135A1 Xanthine derivatives, a process for their preparation and their use in pharmaceutical compositions
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