| GB1362782A
              (en)
            
            * | 1970-08-26 | 1974-08-07 | Fisons Ltd | Tetrazole derivatives | 
        
          | US4064256A
              (en)
            
            * | 1970-08-26 | 1977-12-20 | Fisons Limited | Benzopyranyltetrazoles as antiasthma agents | 
        
          | US3818042A
              (en)
            
            * | 1972-01-12 | 1974-06-18 | Syntex Inc | Xanthone carboxylic acids and derivatives | 
        
          | US3873714A
              (en)
            
            * | 1971-07-14 | 1975-03-25 | Syntex Inc | Xanthone carboxylic acids and derivatives | 
        
          | GB1389827A
              (en)
            
            * | 1971-07-23 | 1975-04-09 | Fisons Ltd | Tetrazolyl benzopyrans | 
        
          | CA988525A
              (en)
            
            * | 1971-07-23 | 1976-05-04 | Fisons Limited | 4 oxo-2(tetrazol-5-yl)4h-1-benzopyrans for treating allergic asthma | 
        
          | BE787843A
              (fr)
            
            * | 1971-08-23 | 1973-02-22 | Syntex Corp | Nouveaux composes d'acides xanthone-carboxyliques substitues | 
        
          | US3859442A
              (en)
            
            * | 1971-08-23 | 1975-01-07 | Syntex Inc | A method of inhibiting symptoms of asthma | 
        
          | US3867407A
              (en)
            
            * | 1971-08-23 | 1975-02-18 | Jurg R Pfister | Substituted xanthone carboxylic acid compounds | 
        
          | US3885038A
              (en)
            
            * | 1971-08-23 | 1975-05-20 | Syntex Inc | Method of using substituted xanthone carboxylic acid | 
        
          | US3959482A
              (en)
            
            * | 1971-09-08 | 1976-05-25 | Burroughs Wellcome Co. | Fluorenone carboxylic acids for the prevention of the symptoms of asthma and allergin rhinitis | 
        
          | US3950342A
              (en)
            
            * | 1971-09-08 | 1976-04-13 | Burroughs Wellcome Co. | Acridone-dicarboxylic acids | 
        
          | US4061768A
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            * | 1971-09-08 | 1977-12-06 | Burroughs Wellcome Co. | Certain cyclic carbonyl compounds used in the prophylaxis of allergic conditions | 
        
          | BE789822A
              (fr)
            
            * | 1971-10-08 | 1973-04-06 | Allen & Hanburys Ltd | Nouveaux composes heterocycliques | 
        
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              (en)
            
            * | 1972-01-12 | 1975-05-27 | Syntex Inc | Disubstituted xanthone carboxylic acid compounds | 
        
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            * | 1972-01-12 | 1975-02-19 | Syntex Corp | Preparation p-substituted-phenyl salicylic acid ethers and  xanthone-2-carboxylic acid compounds therefrom | 
        
          | BE793749A
              (fr)
            
            * | 1972-01-12 | 1973-07-09 | Syntex Corp | Nouveaux composes d'acides xanthone-carboxyliques disubstitues | 
        
          | BE793751A
              (fr)
            
            * | 1972-01-12 | 1973-07-09 | Syntex Corp | Nouveaux composes d'acides xanthone-carboxyliques disubstitues | 
        
          | US3894049A
              (en)
            
            * | 1972-06-05 | 1975-07-08 | Syntex Inc | Disubstituted xanthone carboxylic acid compounds | 
        
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            * | 1972-02-24 | 1981-02-10 | Burroughs Wellcome Co. | Pharmaceutical composition containing acridone compounds and method of using same | 
        
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            * | 1972-03-03 | 1976-04-06 | Syntex (U.S.A.) Inc. | Novel substituted xanthone carboxylic acid compounds | 
        
          | US3928379A
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            * | 1972-03-03 | 1975-12-23 | Mead Johnson & Co | N-phenyl amidines | 
        
          | US3835157A
              (en)
            
            * | 1972-05-17 | 1974-09-10 | Syntex Inc | Heterocyclic substituted xanthone carboxylic acid compounds | 
        
          | US3835158A
              (en)
            
            * | 1972-05-17 | 1974-09-10 | Syntex Inc | Heterocyclic substituted xanthone carboxylic acid compounds | 
        
          | GB1447031A
              (en)
            
            * | 1972-05-19 | 1976-08-25 | Wellcome Found | Tricyclic sulphones and pharmaceutical compositions containing them | 
        
          | US4012499A
              (en)
            
            * | 1972-05-19 | 1977-03-15 | Burroughs Wellcome Co. | Cyclic sulphur compounds | 
        
          | US3910957A
              (en)
            
            * | 1972-06-05 | 1975-10-07 | Syntex Inc | Xanthone carboxylic acids and derivatives | 
        
          | US3835139A
              (en)
            
            * | 1972-07-19 | 1974-09-10 | Syntex Inc | N-substituted acridone carboxylic acids and derivatives | 
        
          | BE793954A
              (fr)
            
            * | 1972-07-19 | 1973-07-12 | Syntex Corp | Acides thioxanthone-carboxyliques et leurs derives | 
        
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            * | 1972-09-06 | 1978-11-28 | Burroughs Wellcome Co. | Ditetrazole substituted acridone compounds | 
        
          | US4039556A
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            * | 1972-09-06 | 1977-08-02 | Burroughs Wellcome Co. | Substituted carbonyl compounds | 
        
          | US4094968A
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            * | 1972-09-06 | 1978-06-13 | Burroughs Wellcome Co. | Treatment for allergy and method of composition thereof | 
        
          | GB1452891A
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            * | 1972-09-06 | 1976-10-20 | Wellcome Found | Tricyclic tetrazole derivatives their synthesis and compositions containing them | 
        
          | US4025635A
              (en)
            
            * | 1972-09-06 | 1977-05-24 | Burroughs Wellcome Co. | Cyclic sulphur compounds | 
        
          | US3939276A
              (en)
            
            * | 1972-09-07 | 1976-02-17 | Burroughs Wellcome Co. | Cyclic carbonyl compounds | 
        
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              (fr)
            
            * | 1972-09-25 | 1973-07-10 | Syntex Corp | Composes d'acides xanthone-carboxyliques substitues par des groupes alcenyles et alcynyles | 
        
          | BE793864A
              (fr)
            
            * | 1972-09-25 | 1973-07-10 | Syntex Corp | Derives d'acide xanthone-carboxylique substitues par un groupement ether non sature | 
        
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            * | 1973-02-12 | 1975-11-11 | American Home Prod | 9-Oxoxanthene-N,N{40 -bis(substituted)-2,7-disulfonamides | 
        
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            * | 1973-03-19 | 1974-09-23 |  |  | 
        
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            * | 1974-01-08 | 1976-06-15 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
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            * | 1974-01-08 | 1976-06-22 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
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            * | 1974-01-08 | 1976-06-15 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
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            * | 1974-03-01 | 1978-08-15 | Abbott Laboratories | Uricosuric diuretic composition | 
        
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            * | 1974-03-12 | 1976-04-20 | Syntex (U.S.A.) Inc. | Method of use of, and compositions containing, disubstituted xanthone carboxylic acid compounds | 
        
          | JPS5516432B2
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            * | 1974-05-28 | 1980-05-01 |  |  | 
        
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            * | 1974-07-01 | 1975-11-18 | American Home Prod | Method of treating antiarrhythmic activity with bis(2-(dialkylamino)ethoxy)xanthen-9-one antiarrhythmic agents | 
        
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            * | 1975-03-13 | 1976-09-07 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
          | US3989720A
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            * | 1975-03-13 | 1976-11-02 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
          | US3988352A
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            * | 1975-03-13 | 1976-10-26 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
          | US3989721A
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            * | 1975-03-13 | 1976-11-02 | Syntex (U.S.A.) Inc. | Disubstituted xanthone carboxylic acid compounds | 
        
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            * | 1975-04-02 | 1977-07-12 | Riker Laboratories, Inc. | Substituted 3-(1H-tetrazol-5-yl)-quinoline compounds | 
        
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            * | 1975-06-12 | 1978-07-25 | Burroughs Wellcome Co. | Antiallergic cyclic sulphur compounds | 
        
          | US4007205A
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            * | 1976-03-16 | 1977-02-08 | Warner-Lambert Company | 7-Substituted-9-oxoxanthene-2-carboxaldehydes | 
        
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            * | 1977-12-23 | 1980-09-09 | Miles Laboratories, Inc. | Cycloalkenochromone | 
        
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            * | 1978-03-08 | 1980-11-04 | Syntex (U.S.A.) Inc. | Compositions for and a method of preventing diabetic complications | 
        
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            * | 1978-05-22 | 1980-08-12 | Syntex (U.S.A.) Inc. | Disubstituted xanthone-2-carboxylic acid antiallergy agents | 
        
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            * | 1978-11-24 | 1981-08-04 | Merck & Co., Inc. | Dibenz[b,e]oxepin compounds | 
        
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            * | 1978-11-30 | 1980-06-10 | Kaken Pharmaceut Co Ltd | Coumarin derivative, its preparation, and antiallergic drugs containing it as active constituent | 
        
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            * | 1979-02-09 | 1985-10-07 | Roussel Uclaf | Heterocykliska derivat och farmaceutiska kompositioner innehallande dessa derivat | 
        
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            * | 1980-10-21 | 1982-04-23 | Cird | Dihydroxy-1,8 anthrones-9 substituees en position 10 et leur utilisation en medecine humaine ou veterinaire et en cosmetique | 
        
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            * | 1982-04-27 | 1986-05-09 | Wellcome Found | Substituted xanthenes and xanthones and pharmaceutical compositions | 
        
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            * | 1982-07-29 | 1985-10-01 | Merck & Co., Inc. | 6-(1-Hydroxyethyl)-2-(2-aminoethylthio)-3-tetrazoly-1-carbadethiapen-2-em | 
        
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            * | 1983-10-25 | 1983-11-23 | Wellcome Found | Pharmacologically active ketones | 
        
          | EP0430881A3
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            * | 1989-11-29 | 1991-10-23 | Ciba-Geigy Ag | Photochromic compounds, process for their preparation and their use | 
        
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            * | 2011-04-08 | 2011-09-14 | 华东师范大学 | 一取代或二取代呫吨酮化合物及合成方法 | 
        
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              (en) | 2016-11-04 | 2018-05-11 | Auckland Uniservices Limited | Tricyclic heterocyclic derivatives and uses thereof | 
        
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              (en) | 2023-11-07 | 2024-04-30 | King Faisal University | Pyridino-2,16-dioxapentacyclo[7.7.5.01,21.03,8.010,15]henicosa3(8),10,12,14-tetraene-7,20-dione as an antimicrobial compound |