| Patents for C07D 307 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom (47,108) | 
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| 03/06/1991 | EP0415887A2 3-Phenyl-benzofuran-3-ones | 
| 03/06/1991 | EP0415641A1 Substituted glutaramic acids and derivatives | 
| 03/06/1991 | EP0276329B1 2,3-diaminoacrylonitrile derivatives | 
| 03/06/1991 | CN1049654A N-(substituted benzyloxy) imine derivatives, process for production thereof | 
| 03/06/1991 | CA2024581A1 Substituted n-benzylpiperidine amides | 
| 03/05/1991 | US4997958 Process for producing ascorbic acid 6-esters | 
| 03/05/1991 | US4997956 Certain 2,3-dihydro-2;2-dimethyl-benzothiophene carboxylic acids which are intermediates | 
| 03/05/1991 | US4997955 Preparation of 1,1-disubstituted ethylene compounds | 
| 03/05/1991 | US4997847 Biologically active compounds | 
| 03/05/1991 | US4997843 Platelet activating factor, anticoagulants | 
| 03/01/1991 | CA2023495A1 Herbicidal glutaramic acids and derivatives | 
| 03/01/1991 | CA2021727A1 Single pot process for mixing fluoroanthranilic acid | 
| 02/27/1991 | EP0414342A2 Process for the manufacture of haloalkyllactones and substituted oxazolidinone intermediates | 
| 02/27/1991 | EP0414153A1 N-(substituted benzyloxy)imine derivatives, process for the production thereof, use thereof, and method of use thereof | 
| 02/27/1991 | EP0414065A2 Process for the preparation of aldehydes | 
| 02/27/1991 | CN1049499A 2,3-dihydro-5-oxy-4,6,7-trimethylbenzofurans 2-(rs)- derivatives with properties of mucus-adjustment and antiischemia | 
| 02/27/1991 | CN1011785B Process for preparing acid additive salts of 2-(2-(aminoethyl) thiomethyl)-5-dimethyl-aminomethyl-furan | 
| 02/26/1991 | US4996288 Cyclobutarene ketoanhydride and ketocarboxy | 
| 02/26/1991 | US4996227 Administering nontoxic antitumor agents | 
| 02/26/1991 | US4996225 Tri-phenyl alkane derivatives and their oestrogenic, anti-oestrogenic and progestanic uses | 
| 02/26/1991 | US4996203 2,5-diaryl tetrahydrofurans and analogs thereof as PAF antagonists | 
| 02/26/1991 | CA1280848C2 Process for preparing amides from nitriles and amines | 
| 02/26/1991 | CA1280753C Process for preparing heterocyclic substituted- phenoxyalkyl isoxazoles and-furans | 
| 02/26/1991 | CA1280750C Phenyl and heterocyclic tetrahydropyridyl and piperazinyl alkoxy-benzheterocyclic compounds as antipsychotic agents | 
| 02/21/1991 | WO1991001969A1 Phenyl-glycine derivatives | 
| 02/21/1991 | WO1991001968A1 Phenyl-glycine derivatives | 
| 02/21/1991 | WO1991001724A1 Renal-selective prodrugs for the treatment of hypertension | 
| 02/21/1991 | WO1991000725A3 Amino acid analog cck antagonists | 
| 02/20/1991 | EP0413668A2 New 2,3-dihydro-5-oxy-4,6,7-trimethylbenzofuranes 2-(RS)-substitutes, useful as antioxidizing pharmaceutical products having mucoregolating and anti-ischemic properties | 
| 02/20/1991 | EP0413415A1 Carboxylic acids and derivates thereof | 
| 02/20/1991 | EP0413343A2 Furan derivatives | 
| 02/20/1991 | EP0413223A2 N-heterocyclomethyl-spiroheterocyclic compounds and fungicide containing them | 
| 02/20/1991 | CN1049340A Intermediate for saccharoascorbic acid esters, production method | 
| 02/20/1991 | CN1049339A Process for recovery of tetrahydrofuran from mixtures containing tetrahydrofuran, lower alkanols and water | 
| 02/20/1991 | CN1049338A Preparation of amino ketone compound | 
| 02/19/1991 | US4994585 Method of preparing (S)-γ-hydroxymethyl-α, β-butenolide | 
| 02/19/1991 | US4994580 Producing bis (alicyclic) thioethers | 
| 02/19/1991 | US4994572 Synthesis of nojirimycin derivatives | 
| 02/19/1991 | US4994512 Poly-methine compounds, condensation polymer having a poly-methine compound admixed therein and shaped articles produced therefrom | 
| 02/19/1991 | US4994493 Treatment of cerebral edema | 
| 02/19/1991 | US4994473 Pyridyl containing insecticides | 
| 02/19/1991 | CA2023522A1 2,3-dihydro-5-oxy-4,6,7-trimethylbenzofuranes 2-(rs)-substitutes, useful as antioxidizing pharmaceutical products having mucoregulating and anti-ischemic properties | 
| 02/19/1991 | CA1280436C Synergistic antioxidant mixtures | 
| 02/19/1991 | CA1280417C Fungicidal acrylates and preparation thereof | 
| 02/19/1991 | CA1280416C Antioestrogenic phenol derivatives | 
| 02/19/1991 | CA1280414C Isoprenoidamine derivatives and antiulcer agents | 
| 02/14/1991 | DE3926769A1 New piperidino:methyl-substd. oxa- and thia-spiro:decane cpds. - e.g.3 8-tert butyl-2-((4-tert. butylpiperidino) methyl)-1,4-di:oxa-spiro(4.5):decane, useful as fungicides | 
| 02/13/1991 | EP0412366A1 Process for the preparation of 2,5-dihydrofurans | 
| 02/12/1991 | US4992579 Catalytic oxidation using cerium, cobalt, manganese, zirconium, bromine containing catalyst | 
| 02/12/1991 | US4992568 Synthesis of benzofurans | 
| 02/12/1991 | US4992562 Renin inhibitors containing 5-amino-2,5-disubstituted-4-hydroxypentanoic acid residues | 
| 02/12/1991 | US4992518 Polymers obtained by heating allybicyclo[2.2.1]hept-5-ene-2-carboxylic acid amides for between 6 and 60 hours at 150°-300° C. | 
| 02/12/1991 | US4992467 Treating cardiac, pancreatic and renal allograft rejection and diabetes | 
| 02/12/1991 | US4992464 Heteroaryl N-hydroxy amides and ureas with polar substituents as 5-lipoxygenase inhibitors | 
| 02/12/1991 | CA1280115C Benzo b thiophen and benzo b furancarboxamides, their preparation and medicaments comprising the same | 
| 02/07/1991 | WO1991001313A1 Process for producing dipotassium ascorbate-2-sulphate | 
| 02/07/1991 | WO1990015069A3 Amino acid derivative anticonvulsant | 
| 02/07/1991 | DE3925690A1 Prodn. of o-sulpho-benzoic anhydride - comprises reacting o-sulpho-benzoic acid salt with thionyl chloride in nitro:ethane, useful as pharmaceutical and dyestuff intermediate | 
| 02/06/1991 | EP0411409A1 Tert.-butylesters of substituted 3-hydroxyproponoic acid | 
| 02/06/1991 | EP0411403A1 Method of preparing (S)-gamma-hydroxymethyl-alpha, beta-butenolide | 
| 02/06/1991 | EP0411184A1 Ascorbic acid derivative | 
| 02/06/1991 | EP0411182A1 Ascorbic acid derivative | 
| 02/06/1991 | CN1049011A Ester production by hydrogenation of carboxylic acids and anhydrides | 
| 02/05/1991 | WO1991001981A1 Process for preparing tetrahydrofuran | 
| 02/05/1991 | USRE33533 Polycyclic heterocyclic compounds, a process for their preparation and their use in human and veterinary medicine | 
| 02/05/1991 | US4990703 Novel tetrahydronaphthalene and indane derivatives | 
| 02/05/1991 | US4990668 Reacting selected dioxolane with hydrohalic acid and organic acid, then with amine | 
| 02/05/1991 | US4990647 Catalytic coupling of two different halogenaromatics | 
| 02/05/1991 | US4990631 Reacting trialkyl orthoformate with boron trifluoride and lactone, then with alkoxide or alkanol and base | 
| 02/05/1991 | US4990630 Chemical intermediates/ | 
| 02/05/1991 | US4990178 Herbicide, its preparation and use | 
| 02/05/1991 | CA2064561A1 Process for preparing tetrahydrofuran | 
| 01/30/1991 | EP0410758A2 Process for producing optically active propionic acid derivatives | 
| 01/30/1991 | EP0410447A2 Liquid crystalline compounds, liquid crystal compositions containing the same and use thereof | 
| 01/30/1991 | EP0410380A2 Novel process for the synthesis of 2-fluoro-1-olefins | 
| 01/30/1991 | EP0410176A1 2-Aminopentanoic acid compounds and their use as immunosuppressants | 
| 01/30/1991 | CN1048845A Certain glyoxyl-cyclohexendiones | 
| 01/29/1991 | US4988828 Phenoxypropyl derivatives | 
| 01/29/1991 | US4988826 Process for intermediates for insecticidal compounds | 
| 01/29/1991 | US4988729 Pesticides based on substituted aminomethylheterocyclic compounds | 
| 01/29/1991 | US4988693 Fungicide compositions | 
| 01/29/1991 | US4988526 Flavors for foods, organoleptic | 
| 01/29/1991 | US4988496 Metal radionuclide chelating compounds for improved chelation kinetics | 
| 01/29/1991 | CA1279574C Process for lubricating water-soluble vitamin powders | 
| 01/28/1991 | WO1991001964A1 Ester production by hydrogenation of carboxylic acids and anhydrides | 
| 01/28/1991 | CA2036380A1 Ester production by hydrogenation of carboxylic acids and anhydrides | 
| 01/26/1991 | CA2021521A1 Process for the synthesis of 2-fluoro-1-olefins | 
| 01/25/1991 | WO1991001312A1 Novel photoactive compounds | 
| 01/25/1991 | CA2065005A1 Photoactive compounds | 
| 01/24/1991 | WO1991000859A1 Method of producing dipotassium-ascorbate-2-sulphate | 
| 01/24/1991 | WO1991000858A1 Pharmaceutically active compounds | 
| 01/24/1991 | DE4021503A1 New optically active R-2-di:benzo:furan-3-oxy-propionic acid derivs. | 
| 01/23/1991 | EP0409413A2 Diaryl ether heterocycles | 
| 01/23/1991 | EP0409350A2 Certain glyoxyl-cyclohexendiones | 
| 01/23/1991 | EP0409147A2 Process for the preparation of tetronic acid esters | 
| 01/23/1991 | EP0408760A1 New hydroxylamine derivative | 
| 01/23/1991 | EP0408749A1 Derivatives of 3,18-dihydroxy-9,13-epoxylabdane, method of obtaining them and a hemostatic pharmaceutical preparation based thereon | 
| 01/22/1991 | US4987239 Process for the production of anhydrides | 
| 01/22/1991 | US4987238 Process for the preparation of high-purity 5,5'-[2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene]bis-1,3-isobenzofurandione | 
| 01/22/1991 | US4987233 Process for preparing herbicidal ureas and insecticidal carbamates and carbamate derivatives |