Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 519 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or
Patents for C07D 519 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or (11,041)
01/1982
01/05/1982US4309347 Penicillanoyloxymethyl penicillanate 1,1,1',1'-tetraoxide
12/1981
12/30/1981EP0042622A1 Spiro[2,2,6,6-tetramethyl-piperidine-4,2'-(1',3'-dioxo(ol)an]-derivatives and stabilizers for synthetic polymers
12/22/1981US4307100 5'-noranhydrovinblastine, 5'-noranhydro-vincristine, 5'-norleurosine and derivatives useful in treatment of leukemia
12/22/1981US4307090 Cephalosporins - bactericides
12/22/1981CA1114817A1 Method of preparing vindesine sulfate
12/22/1981CA1114816A1 Bridged catharanthus alkaloid dimers
12/16/1981EP0041935A1 N-(vinblastinoyl-23) derivatives of amino acids and peptides and their preparation
12/15/1981US4305875 Hydroxylation, reduction
12/02/1981EP0041030A1 Compositions for topical use containing Ergot or Vinca Rosea alkaloids for treatment of hyperseborrhoea, and their preparation
12/01/1981US4303584 Method of preparing vincristine
12/01/1981CA1113455A1 7-acylamido-3-(2-carboxyalkyl-2,3-dihydro-3-triazolo ¬4,3-b| pyridazin-3-on-6-ylthiomethyl)-3-cephem- 4-carboxylic acids
12/01/1981CA1113410A1 Analogues of ergot alkaloids
11/1981
11/25/1981EP0040408A1 Beta-lactam compounds and process for production thereof
11/17/1981US4301248 Produced by culturing streptomyces under submerged aerobic conditions
11/10/1981CA1112239A1 Method for producing bis-penicillanoyloxy-alkanes
11/03/1981US4298525 Antitumor agents corresponding to vinblastine or leurosine
11/03/1981CA1111850A1 Phthalazine derivatives having phosphodiesterase inhibitory and cardiac stimulating properties
10/1981
10/27/1981CA1111348A1 Solution containing a hydrogenated ergopeptide alkaloid
10/07/1981EP0037290A1 Process for preparing a vinca dimer
10/07/1981EP0037289A1 Method of preparing a vinca dimer
10/06/1981CA1110242A1 Pyrido-oxazolyl-stilbenes, process for their manufacture and their use as optical brighteners
09/1981
09/30/1981EP0036762A2 A pharmaceutical formulation of a vinca dimer
09/15/1981US4289772 1-Piperidinophthalazines as cardiac stimulants
09/15/1981US4289686 Tetra-alkyl piperidine derivatives as light stabilizers
09/08/1981US4288590 Antibiotics
09/01/1981CA1108128A1 Cyclization process for an ergot alkaloid
08/1981
08/19/1981EP0033981A2 Preparation of bridged catharanthus alkaloid dimers
08/11/1981US4283402 6-N-Heterocyclyl-3-tetrazolyl-penicillins
08/04/1981US4282027 Tri/penta/aza-tetracyclo-dodeca/enes/dienes or diecaenes
08/04/1981CA1106359A1 Cephalosporin compounds and process for preparation thereof
07/1981
07/29/1981EP0032756A2 Intermediates used in the preparation of bridged catharanthus alkaloid dimers
07/21/1981US4279916 Leukemia
07/21/1981US4279915 Method of treatment using new leurosine derivatives
07/21/1981US4279817 Method for producing dimer alkaloids
07/21/1981US4279816 N-Formyl leurosine derivatives in a dosage form effective for treating lymphoid leukemia
07/14/1981US4278793 Cephem derivative
07/14/1981CA1105009A1 Ergot derivatives
07/14/1981CA1105007A1 Ergot peptide alkaloid derivatives
06/1981
06/30/1981CA1104126A1 Method for producing derivatives of penicillanic acid
06/23/1981US4275206 Lactone compounds containing an indolizine radical
06/23/1981CA1103664A1 Oxazolidinedione derivatives of vinca alkaloids
06/23/1981CA1103585A1 A nasal pharmaceutical composition
06/09/1981CA1102789A1 Immunological determination
05/1981
05/20/1981EP0028813A2 Stable solutions of hydrogenated ergotalcaloids or their salts and heparin or its salts,and process for their preparations
05/20/1981EP0028803A1 New penicillanic and cephalosporanic derivatives, preparation thereof and pharmaceutical compositions containing same
05/19/1981US4268300 Plant growth regulators
05/19/1981CA1101414A1 Process for the synthesis of leurosine and of its derivatives
05/12/1981US4267176 Amino or acylamino-substituted pyrimidinyl cephalosporanic acid derivatives and pharmaceutical compositions thereof
05/12/1981CA1100957A1 4-desacetoxy-4-oxovinblastine
05/12/1981CA1100956A1 4-desacetoxy-4alpha-hydroxyvinblastine and related compounds
05/05/1981CA1100495A1 Process for the preparation of alkaloids of the leurosine type
04/1981
04/29/1981EP0027620A1 2,2,6,6-Tetraalkyl-4-piperidyl-bis-spiro-ethers and synthetic polymers stabilised therewith
04/28/1981US4264499 1-Substituted thiomethyltriazolobenzodiazepines and production thereof
04/16/1981WO1981000961A1 Peptidic alcaloids of the ergot,preparation process thereof,pharmacological compositions containing them and therapeutic utilization thereof
04/15/1981EP0026899A1 Peptide ergot alkaloids, process for their preparation, drugs containing them and their use in therapy
04/14/1981CA1099259A1 Polycyclic nitrogenous compounds
03/1981
03/31/1981USRE30561 Vinca alkaloid intermediates
03/31/1981USRE30560 Oxazolidinedione derivatives of Vinca alkaloids
03/31/1981US4259242 Free from hemisulfate and disulfate
03/31/1981US4259235 Tricyclic nitrogenous compounds having string plant growth regulating properties
03/24/1981US4257941 Polycyclic nitrogen-containing compounds
03/17/1981CA1097629A1 Anti-tumor derivatives of 4-desacetyl vlb c-3 carboxhydrazide
03/17/1981CA1097628A1 3'-oxygenated derivatives of 4'-deoxy vlb "a" and "b" and related 1-formyl compounds
02/1981
02/17/1981US4251529 Ergot peptide alkaloids
02/10/1981US4250098 Chromogenic compounds
02/04/1981EP0023330A1 2,2,6,6-Tetraalkyl-4-piperidyl alcohol esters of tetradecylene polycarboxylic acids as light stabilizers for synthetic polymers and stabilized compositions
01/1981
01/28/1981EP0022997A1 2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides of mono and poly alcohols, phenols and amines and synthetic polymer compositions stabilized thereby
01/27/1981US4247449 Urea derivatives, process for their manufacture and their use as light protecting agents for polymers
01/27/1981CA1094552A1 Process for the isolation of alkaloid components from the plant vinca rosea l.
01/27/1981CA1094551A1 Diindole alkaloid and a process for the preparation thereof
01/21/1981EP0022730A1 Class of bis-indole compounds useful as medicines, and process for their preparation
01/14/1981EP0022418A1 Process for the preparation of ergotamine and of alcaloids of the ergotoxine group
01/13/1981US4244951 Bis-esters of methanediol with penicillins and penicillanic acid 1,1-dioxide
01/13/1981CA1093551A1 Penicillins
01/07/1981EP0021082A1 N-heterocyclyl thienamycins, process for preparing and antibiotic pharmaceutical composition containing the same
12/1980
12/23/1980US4241208 Stabilizers of synthetic polymers against heat and light
12/16/1980US4239763 9,10-dihydro-ergot-peptide
12/02/1980US4237291 Process for the isolation of ergot alkaloids from culture suspensions
11/1980
11/25/1980CA1090332A1 Polycyclic nitrogen-containing compounds
11/18/1980US4234734 Light and oxidation stabilizers for polymers
11/11/1980US4232887 Pressure sensitive and heat sensitive elements for recording
11/04/1980US4231930 1-Substituted thiomethyltriazolobenzodiazepines
11/04/1980CA1088865A1 Pharmaceutical composition containing a hydrogenated ergot alkaloid and etilefrin
10/1980
10/29/1980EP0018231A2 A process for the preparation of bis-indole-alkaloids and acid addition salts thereof and new bis-indole-alkaloids, pharmaceutical compositions containing them and their use as antitumour agents
10/29/1980EP0018001A2 Chromophoric cephalosporin derivatives, process for their preparation and their utilisation, compositions containing them and their preparation
10/28/1980US4230854 Analogues of ergot alkaloids
10/28/1980CA1088527A1 4'-deoxyvincristine and related compounds
10/28/1980CA1088526A1 4'-deoxyvincristine and related compounds
10/21/1980US4229451 Vasoconstrictors
10/21/1980US4229443 Derivatives of penicillanic acid
10/15/1980EP0017523A1 Dithiepinno (1,4)(2,3-c) pyrrol derivatives, their preparation and pharmaceutical compositions containing them
10/07/1980US4226863 7-Methoxy cephalosporins
10/07/1980US4226769 Freeze drying
09/1980
09/30/1980US4225605 Ergolene or ergoline compounds for treating congestive heart failure
09/30/1980CA1086716A1 7-methoxycephalosporin
09/02/1980US4220646 Heterocyclic compounds
09/02/1980CA1084920A1 N-substituted triaza-adamantanyl ureas as stabilizers for thermoplastic materials
08/1980
08/26/1980US4219555 2-Bromoergosine and pharmacologically compatible acid addition salts thereof as well as their use for the treatment of arterial hypertension and or heart arrythmias
08/26/1980US4219465 Piperidine-spiro-hydantoin derivatives and their use as polymer stabilizers
08/26/1980CA1084486A1 7-.alpha.-(4-HYDROXY-1,5-NAPHTHYRIDINE-3-CARBONAMIDO)-.alpha.- PHENYLACETAMIDO CEPHALOSPORIN DERIVATIVES
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