Richter Gedeon Vegyeszeti Gyar Rt

Gyogyszerkutato Intezet Kft.

Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.

Egis Gyogyszergyar

Ivax Drug Research Institute

Peter Matyus

Endre Kasztreiner

Laszlo Jaszlits

Gyorgy Cseh

Antal Simay

Ferenc Andrasi

Istvan Elekes

Laszlo Sebestyen

Judit Kosary

Erzsebet Zara

Agnes Papp

Lajos Toldy

Laszlo Tardos

Sandor Elek

Katalin Goldschmidt

Istvan Polgari

Gyorgy Rabloczky

Geza Szilagyi

Andras Varro

Maria Kuhar Nee Kurthy

Edit Kosa

Istvan Sziraki

Zsuzsanna Fittler

Agnes Kenessey

Lajos Farkas

Valeria Vitkoczi

Klara Sutka

Eszter Hodula

Zsuzsa Huszti

Nandor Makk

Eva Gal

Eszter Diesler

Klara Czako

Ildiko Mathe

Marta Rusz

Ildiko Varga

Imre Moravcsik

Marton Fekete

Pal Berzsenyi

Tibor Balogh

Istvan Tarnawa

Katalin Szemeredi

Ilona Bodi

Sandor Boros

Katalin Eszter Horvath

Agnes Papp Nee Behr

Lajos Ila

Gyongyi Nagy Nee Csokas

Judit Sarossy Nee Kincsesy

Laszlo Gabor Harsing

Aniko Tegdes

Judit Kincsessy

Laszlo Kaufer

Ildiko Pribusz Nee Rapp

Gyorgy Rablocsky

Sarolta Vegvari Nee Gyurki

Laszlo Szam

Agnes Angyal Nee Pataky

Erzsebet Szabo Nee Bagdy

Katalin Szabo Nee Pusztai

Andrea Jednakovics

Szilagyi Geza

Aniko Miklos

Gvorgy Schmidt

Luca Levay

Pyridazino(4,5-b)(1,5)oxazepinone, -thiazepinone and -diazepinone compounds

An N-benzoylamino acid compound of the formula (I), ##STR1## wherein R.sup.3 is an NR.sup.4 R.sup.5 group where R.sup.4 and R.sup.5 which are the same or different are selected from the group consisting of hydrogen, a hydroxyl group, a C.sub.1-12 alkyl group, a C.sub.1-4 alkyl group substituted by a hydroxyl group and a C.sub.1-4 alkyl group substituted by an amino group;

N-benzoylamino acid derivatives, pharmaceutical compositions containing

The invention relates to novel N-benzoylamino acid derivatives of the general formula (I), ##STR1## wherein R.sup.1 and R.sup.2, which are the same or different, stand for a hydroxyl group optionally bearing an acetyl group; or a C.sub.1-6 alkoxy group optionally substituted by a phenyl group;

N-benzoyl amino acid derivatives pharmaceutical compositions containing

Racemic or optically active new 3(2H)-pyridazinone derivatives, a process for the preparation thereof, pharmaceutical compositions comprising the same, to the use of the said 3(2H)-pyridazinone derivatives for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases. The new 3(2H)-pyridazinone derivatives according to the invention correspond to the general formula (I), ##STR1##

3(2H)-pyridazinone derivatives and process for the preparation thereof

The invention relates to novel 3(2H)-pyridazinone-derivatives of the general formula (I), pharmaceutical compositions containing them and process for their preparation. In the general formula (I) ##STR1## stands for an ethyl or propyl group substituted by a terminal halogen atom or a hydroxyl or NR.sup.1 R.sup.2 group, wherein

3(2H)-pyridazinones and pharmaceutical compositions thereof

The invention relates to novel pyrimido [5,4-b][1,4]oxazine derivatives of the formula (I), and the acid addition salts thereof, pharmaceutical compositions containing them and a process for their preparation. In the formula (I) ##STR1## wherein R.sup.1 stands for a C.sub.1-4 alkyl group;

Pyrimido[5,4-B][1,4]oxazine derivatives and pharmaceutical compositions

The invention relates to a novel process for the preparation of 6-(substituted amino)-3-pyridazinylhydrazines having the general formula I ##STR1## and their pharmaceutically acceptable acid addition salts, wherein R.sup.1 stands for hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms;

Process for the preparation of 6-(substituted

Pyridazinylhydrazones capable of lowering blood pressure have the formula ##STR1## wherein R.sup.1 is hydrogen, chlorine, alkyl having from 1 to 4 carbon atoms, methoxy, hydroxyl, carbamoyl or cyano;

Novel pyridazinylhydrazones and method of administering same

Pyridazinylhydrazones capable of lowering blood pressure having the formula ##STR1## wherein R.sup.1 is hydrogen, chlorine, alkyl having from 1 to 4 carbon atoms, methoxy, hydroxyl, carbamoyl or cyano;

Morpholino pyridazinylhydrazones

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Budapest, Hungary

Peter Matyus