Egyt Gyogyszervegyeszeti Gyar

Egis Gyogyszergyar

Richter Gedeon Vegyeszeti Gyar Rt

Patentbureau Danubia

Egis Gyoryszergyar

Pal Benko

Karoly Magyar

Gyorgy Hajos

Lujza E Petocz

Laszlo Pallos

Andras Messmer

Sandor Batori

Ibolya Kosoczky

Daniel Bozsing

Ildiko Ratz Nee Simonek

Attila Mandi

Eniko Szirt Nee Kiszelly

Katalin Grasser

Peter Gorog

Janos Gundel

Zoltan Budai

Jozsef Kelemen

Jeno Kovacs

Eva Rakoczy Nee Pinter

Frigyes Gorgenyi

Kalman Nagy

Peter Tompe

Istvan Simonyi

Ivan Beck

Laszlo Levai

Eva Furdyga

Janos Imre

Eva J Tajthy Nee Juhasz

Ildiko Simonek

Gyorgyi Kovanyi Nee Lax

Gyorgy Mikite

Gyorgyi Zalavari Nee Dosa

Eva Poczik

Ilona Dinnyes Nee Nagy

Erzsebet Kiss Nee Bertok

Istvan Gyertyan

Gabor Gigler

Peter Tetenyi

Tibor Zsolnai

Jeno Bernath

Maria Hegedus

Andras Gelleri

Zsuzsa Juhasz Nee Riedl

Iboly Kosoczky

Ibolya Kasoczky

Eva Toncsev, Nee Ravasz

Jamos Gundel

Gyo/ Rgyi Kovanyi

Judit Nee Timar

Peter Go/ Ro/ G

Hristone Toncsev

Eniko Nee Szirt

Maria Nee Sigmond

Erzsebet Matrai

Albert Balogh

Grasser Katalin

Iren Zsolnai Nee Csillag

Marta Kininczky

Edit Berenyi Nee Foldermann

Edit Bernenyi Nee Poldermann

The invention relates to a process for the preparation of dimethyl-1,4-dihydro-2,6-dimethyl-4-(2'-nitro-phenyl)-pyridine-3,5-dicarbo xylate of the Formula I ##STR1## which comprises a) reacting a compound of the general Formula II ##STR2## (wherein n is 1 or 3; if n is 1, then R stands for a group of the Formula (a) ##STR3## and if n is 3, then R represents hydrogen) with methyl acetoacetate of the Formula III

1,4,Dihydro-pyridine intermediates

The invention is directed to processes for the preparation of dimethyl-1,4-dihydro-2,6-dimethyl-4-(2'-nitrophenyl)-pyridine-3,5-dicarbox ylate by reacting 1-methoxy-1-(2'-nitrophenyl)-N-(2'-nitrophenyl)methylene methanamie or 1-(2'-nitrophenyl)-N,N'-bis-(2'-nitrophenyl) methylene methanediamine with methyl acetoacetate in the presence of an amine compound or by reacting the monomeric or trimeric from of 2-nitrobenzaldimine with methyl acetoacetate.

Process for the preparation of 1,4-dihydro-pyridine derivatives

The new compounds of the general Formula I ##STR1## (wherein R.sub.1 stands for C.sub.1-4 alkyl or aralkyl; and

Condensed quinolinium and isoquinolinium derivatives

The present invention relates to new carbazates of the formula (I) ##STR1## wherein A is C.sub.3 to C.sub.10 alkenyl, C.sub.2 to C.sub.10 haloalkyl, trifluoromethyl, phenyl-C.sub.1 to C.sub.3 alkyl, phenyl-C.sub.2 to C.sub.3 alkenyl, naphthyl-C.sub.1 to C.sub.3 alkyl, C.sub.3 to C.sub.7 cycloalkyl-C.sub.1 to C.sub.3 alkyl, furyl which can be nitro-substituted, diphenyl-hydroxymethyl or indazolyl which can be substituted by one or more C.sub.1 to C.sub.4 alkoxy groups; and

Carbazates

A process for the preparation of condensed as-triazinium derivatives of the formula I ##STR1## and isomers thereof, wherein R.sub.1 inter alia is an alkyl group, R.sub.2 inter alia is hydrogen or an alkyl group and R.sub.3 is hydrogen and where Z is a group of the formula a or b ##STR2## which comprises reacting a compound of the formula II ##STR3## where Y is a group of the formula c or d ##STR4## with a compound of the formula IIa

Process for the preparation of condensed as-triazine derivatives

The present invention relates to new carbazates of the general formula (I), ##STR1## wherein A is C.sub.3-10 alkyl, C.sub.3-10 alkenyl, C.sub.2-10 haloalkyl, trifluoromethyl, phenyl-C.sub.1-3 alkyl, phenyl-C.sub.2-3 -alkenyl, naphthyl-C.sub.1-3 alkyl; phenyl optionally substituted by one or more identical or different substituent(s) selected from C.sub.1-4 alkyl, halogen, C.sub.1-4 alkoxy and hydroxy; C.sub.3-7 cycloalkyl-C.sub.1-3 alkyl; optionally nitro-substituted furyl; diphenyl-hydroxy-methyl or indazolyl optionally substituted by one or more C.sub.1-4 alkoxy group(s) and

The invention relates to new compounds of the general Formula I ##STR1## and isomers thereof wherein R.sub.1 is C.sub.1-10 alkyl, C.sub.3-6 cycloalkyl or phenyl, naphthyl or phenyl-(C.sub.1-4 alkyl), wherein the aryl ring of the three latter groups may optionally bear one or more halogen, nitro, trifluoromethyl, amino, hydroxy, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy substituent(s);

Condensed as-triazine derivatives

The invention relates to new phenanthrene derivatives wherein R stand for C.sub.1-10 alkylamino; C.sub.1-10 alkylthio; C.sub.1-5 alkoxy; or phenyl or phenylamino, the two latter groups being optionally substituted on the phenyl ring by one or more identical or different C.sub.1-4 alkyl, C.sub.1-4 alkoxy, nitro, amino, cyano and/or halogen substituent(s) . The compounds of the present invention possess valuable fungicidal properties and may be used in agriculture, horticulture and therapy as active ingredient of fungicidal or antifungal compositions. The compounds of the general Formula I ##STR1## may be prepared by acylating 9,10-phenanthrene-dione-9-oxime or an alkali or alkali earth metal salt thereof.

Phenanthrene derivatives

A one step process for the preparation of compounds having antidepressant activity of the formula I ##STR1## and isomers thereof, wherein R.sub.1, R.sub.2, Z and A.sup.- have the meanings indicated in the claims, which process comprises: heating a compound of the formula II ##STR2## wherein Z, A.sup.-, R.sub.1 and R.sub.2 have the meanings set out in the claims and R.sub.3 stands for hydrogen or C.sub.1-4 alkyl, in the presence of a dehydrating agent to split off a compound of the formula R.sub.3 OH. The invention is also directed to compounds of the formula I, wherein R.sub.2 is halogen and to compositions containing a compound of the formula I which exhibit antidepressant activity.

The invention relates to new carbazic acid derivatives, a process for the preparation thereof and compositions--particularly feed additives and animal feeds--containing the same. The new compounds according to the invention correspond to the formula (I)

Carbazic acid derivatives, process for their preparation and

The invention relates to new condensed as-triazine derivatives of the general Formula I ##STR1## and isomers thereof (wherein R.sub.1 stands for C.sub.1-10 alkyl or phenyl or naphthyl, wherein the two latter groups may be optionally substituted by one or more halogen, nitro, amino, hydroxy, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy substituent(s);

The invention relates to new cycloalkane derivatives, a process for the preparation thereof and compositions--particularly feed additives and animal feeds--containing the same. The new compounds of the present invention correspond to the general formula I ##STR1## wherein n is 3, 4, 5 or 6;

Cycloalkane derivatives and fodder compositions containing the same

Carbazic acid derivatives

2-Hydroxymethyl-quinoxaline-1,4-dioxide derivatives, a process for

Acylated pyrido �3,4-e!-as-triazines of the formula (I), ##STR1## wherein R.sub.1 stands for alkyl, alkoxy, haloalkyl, furyl, pyridyl, phenyl, phenyl-(C.sub.1-4 alkyl) or phyenyl-(C.sub.2-4 alkenyl) optionally substituted. R.sub.2 stands for hydrogen or a group of the formula R.sub.1 --CO--, R.sub.3 stands for hydrogen, a phenyl group or a naphthy6l group optionally substituted, or a phenyl-(C.sub.1-4 alkyl) group, pyridyl group or a C.sub.1-20 alkyl group, and R.sub.4 stands for hydrogen or a group of the formula R.sub.1 --CO--, and R.sub.5 forms together with R.sub.2 or R.sub.4 a valence bond, wherein R.sub.2 or R.sub.4 taking part in forming said valence bond may not have the above meaning, and pharmaceutically acceptable acid addition salts thereof, which are prepared by reacting a pyrido �3,4-e!-as-triazine of the formula (II) or an acid addition salt thereof ##STR2## R.sub.6 stands for hydrogen, and R.sub.5 forms together with R.sub. and R.sub.4 a valence bond, with an acylating agent of the formula (III).

Pyrido�3,4-e!-as-triazines

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