Patents
Patents for C07D 493 - Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system (17,376)
03/1991
03/28/1991DE3930950A1 New derivatives of sorangicin A - are antibiotics active against resistant strains of myxo:bacterium
03/28/1991CA2067101A1 Cyclic peroxyacetal lactone and ether compounds
03/27/1991EP0418925A2 Method of producing (S)-4-hydroxymethyl-gamma-lactone
03/27/1991CN1050193A 13-alkyl-23-imino and 13-halo-23-imino derivatives of ll-f28249 compounds and their use as endo-and ectpparasiticidal insecticical, acaricidal and nematocidal agents
03/27/1991CN1012173B The synthetizing of "ambergis ether-m" perfume
03/26/1991US5003087 Preparing a 1-hydroxy-2,3-dialkylcarbonyloxy-4-(3,4-alkoxy phenyl)naphthalene or a lactone by oxidizing the corresponding a 1-ketone-tetralin derivative
03/26/1991US5003056 Antibiotic NK86-0279, process for production of the same and application of the same
03/26/1991US5002864 Silver halide emulsions, multilayer elements for quick developing films
03/26/1991CA1282064C Macrolide compounds
03/26/1991CA1282061C Deconjugation and epimerization process
03/20/1991EP0417188A1 Protein crosslinking reagents cleavable within acidified intracellular vesicles
03/20/1991CN1050021A Synthetic process of diterpenic lactone
03/19/1991US5001147 Photochemotherapic method of treating psoriasis by using methylangelicin compounds
03/19/1991US5001145 Macrolide compounds
03/19/1991CA1281727C Epoxidised polycycloacetals
03/13/1991EP0417060A2 Bicyclic tetrahydroxypyrrolizidine
03/13/1991EP0417059A2 Bicyclic tetrahydroxylated pyrrolizidines
03/13/1991EP0416577A2 Method of preparing levoglucosenone
03/12/1991WO1991003464A1 Herbicidal oxabicyclo ethers
03/12/1991US4999351 Treating cardiac failure and memory deficit
03/12/1991CA2065337A1 Herbicidal oxabicyclo ethers
03/12/1991CA1281329C Lipoxygenase inhibitors
03/12/1991CA1281325C Benzofuran derivatives
03/09/1991CA2024841A1 Bicyclic tetrahydroxypyrrolizidine
03/09/1991CA2024840A1 Bicyclic tetrahydroxylated pyrrolizidines
03/07/1991WO1991002741A1 Sugar alcohol derivatives, a process for preparing 3-deoxy-2-octulosonic acid and 3-deoxy-2-heptulosonic acid compounds and derivatives
03/07/1991WO1991002735A1 Chemical compounds based on a netropsin or distamycin molecule coupled with an intercalating agent, method for preparing said compounds and pharmaceutical compositions containing same
03/07/1991WO1991002733A1 Use of mtmfbl and related compounds as immunomodulatory agents
03/07/1991WO1991002728A1 Optically active epoxycyclohexane derivative, optically active epoxycyclohexanone derivative, and production of said derivatives
03/07/1991DE4027076A1 New optically-active myo-inositol derivs. - useful as inositol phosphate intermediates, are prepared from L-quebrachitol by demethylation and inversion
03/06/1991EP0415885A1 Bis-Phthalideactones, process for their preparation, and their use in recording materials
03/06/1991EP0415190A1 Cycloalkylidene derivatives
03/06/1991EP0415065A1 Chroman derivatives
03/05/1991US4997820 Microbicides
02/1991
02/27/1991EP0414421A2 1-Oxa-2-oxo-8-azaspiro[4,5] decane derivatives, processes for their preparation and pharmaceutical compositions thereof
02/26/1991WO1991002725A1 Derivatives of 5-amino-1,2,3,4 tetrahydro-acridine and applications as drugs
02/26/1991US4996334 Dibenzylidenesorbitols for gelatinizing oils and liquids, increasing transparency and rigidity in resins, improving viscosity of coatings and stabilizing emulsions
02/26/1991US4996329 Derivatives of 1,4-dideoxy-1,4-imino-D-mannitol and a process for their preparation
02/26/1991US4996229 Fungicides; antitumor agents
02/26/1991US4996228 Macrolide antibiotics
02/26/1991CA2064999A1 1,2,3,4-tetrahydroacridin-5-amine derivatives and their use as therapeutic agents
02/20/1991EP0413538A1 Long active injectable formulations containing triacetin
02/20/1991EP0413162A2 Novel cyclic acetals
02/20/1991CN1049348A 2-oxa-1-oxo-8-azaspiro (4,5) decane derivatives, pharmaceutical compositions containing them and process for preparing same
02/20/1991CN1049347A 2-oxa-1-oxo-8-azaspiro ¾4,5 decane derivatives, pharmaceutical compositions containing them and process for preparing same
02/19/1991US4994584 Reducing number of processes for protecting carboxyl group in the chain and hydroxyl groups on the ring
02/19/1991US4994582 Novel antibiotic NK130119
02/19/1991US4994486 Dopaminergic compounds
02/15/1991CA2022892A1 Long active injectable formulations containing triacetin
02/13/1991EP0412820A2 2-Oxo-1-oxa-8-azaspiro[4,5] decane derivatives, processes for their preparation and pharmaceutical compositions thereof
02/12/1991US4992561 Simple conversion of artemisinic acid into artemisinin
02/12/1991US4992466 Polycyclic ether antibiotic
02/12/1991US4992460 Bicyclic tetrahydroxylated pyrrolizidines
02/12/1991US4992434 Microbicidal composition
02/12/1991US4992381 Method of detecting electrolytes in an aqueous test sample using chromogenic hemispherands and test device therefor
02/07/1991WO1991001321A1 Surface-active ether-carboxylic acid/polyol esters
02/06/1991EP0411703A1 Novel HMG-COA synthase inhibitors
02/06/1991EP0411509A2 Fluoran compound, process for preparation thereof and heat sensitive recording materials comprising said compound
02/06/1991EP0411268A2 Dibenzo(1,5)dioxocin-5-on derivatives, their use in medicines and process for their preparation
02/05/1991US4990668 Reacting selected dioxolane with hydrohalic acid and organic acid, then with amine
02/01/1991CA2022117A1 Hmg-coa synthase inhibitors
01/1991
01/31/1991DE3923839A1 New benzopyran derivs. (I) as vasodilators and spasmolytic agents - for treatment of hypertension, angina, migrating, asthma etc.
01/30/1991EP0410615A1 Antiparasitic agent
01/30/1991EP0410320A1 Process for preparing lankacidine carbamate derivatives
01/30/1991EP0410206A1 Fluoran compounds, crystalline toluene adducts thereof, recording material comprising same and process for their preparation
01/30/1991EP0247202B1 Isocarbacyclin derivatives and process for their preparation
01/29/1991US4988824 Process for the preparation of 23-(C1-C6 alkyloxime)-LL-F28249 compounds
01/29/1991US4988616 Triarylmethane indicators for hydrogen peroxide
01/24/1991WO1991000858A1 Pharmaceutically active compounds
01/24/1991DE3924201A1 Oberflaechenaktive ethercarbonsaeure-polyolester Oberflaechenaktive ether carboxylic acid polyol ester
01/23/1991EP0409651A1 New Process for the preparation of anti-hypertensive benzopyran derivative
01/23/1991EP0408749A1 Derivatives of 3,18-dihydroxy-9,13-epoxylabdane, method of obtaining them and a hemostatic pharmaceutical preparation based thereon
01/23/1991CN1011287B Oral hygiene composition
01/22/1991US4987149 Soraphen compounds and their use as microbicides
01/22/1991US4987072 Macrocyclic antibiotics
01/15/1991US4985582 Pesticidal compounds
01/15/1991US4985571 6-membered lactones useful as intermediates for antilipemic mevalonic acid lactones
01/15/1991US4985550 Polyhydroxylated and highly fluorinated compounds, their preparation and their use as surfactants
01/09/1991EP0407217A1 Pharmaceutically active compounds
01/08/1991US4983779 Coupling carbonyl compound with ester in organic solvent in presence of metallic reducing agent, titanium salt, amine base
01/02/1991EP0406211A2 Fucosidase inhibitors
01/02/1991EP0405864A2 Phospholipase A2 inhibitor, microorganisms producing said inhibitor and processes for its production
01/02/1991CA1278577C Bicyclic sulfonamide derivatives
01/01/1991US4981792 Immunosuppressant compound
12/1990
12/27/1990CA1278311C2 Prostaglandins
12/26/1990CN1048041A Dibenzo (1,5) dioxocin-5-one derivatives, their use in medicaments and processes for their prepn.
12/25/1990US4980485 Multistep process from dihydrolimonene
12/25/1990US4980370 Antiparasitic agents
12/19/1990EP0403185A2 Compounds having one or more aminosulfonyloxy radicals useful as pharmaceuticals
12/19/1990EP0403090A1 7-oxabicycloheptane imidazole prostaglandin analogs useful in the treatment of thrombotic and vasopastic disease
12/19/1990EP0402925A2 A method of isolating ginkgolides from the leaves of the ginkgo tree and purifying them
12/19/1990EP0402846A2 Fluorescence polarization immunoassay for tetrahydrocannabinoids
12/19/1990CN1010855B Process for preparation of benzopyran derivs.
12/18/1990US4978762 Process for preparing [1S-[1α,2α)Z),3α,4α]]-7-[3-[[[[[1-oxoheptyl]-amino]acetyl]amino]methyl]-7-oxabicyclo-[2,2,1]hept-2-yl]-5-heptenoic acid
12/18/1990US4978678 12-halogenated forskolin derivatives
12/18/1990US4978677 Pesticides
12/18/1990US4978675 Macrolide antibiotics and their preparation
12/13/1990WO1990015055A1 New class of compounds having a variable spectrum of activities for capsaicin-like responses, compositions and uses thereof
12/13/1990CA2018659A1 Circulation-active dibenzo[1,5]dioxocin-5-ones
12/12/1990EP0377729A4 Improved methods of using chemiluminescent 1,2-dioxetanes