Abstract: Compounds of the formula I ##STR1## in which the carboxyl group on carbon atom 3 is orientated in the endo-position relative to the bicyclic ring system of cis-configuration, and in which R.sup.1 denotes hydrogen, allyl, vinyl or a side-chain of a naturally occurring .alpha.-aminoacid, which may be protected, R.sup.2 denotes hydrogen, alkyl, alkenyl or aralkyl, Y denotes hydrogen or hydroxyl and Z denotes hydrogen, or Y and Z together denote oxygen, and X denotes alkyl, alkenyl or cycloalkyl, or aryl which is optionally mono-, di- or tri-substituted by alkyl, alkoxy, hydroxyl, halogen, nitro, amino, alkylamino, dialkylamino or methylenedioxy, or denotes indol-3-yl, a process for their preparation, agents containing these compounds and their use.

Abstract: The invention relates to compounds of the formula I ##STR1## in which m denotes 1 or 2 and n denotes, 0, 1 or 2; R.sup.1 and R.sup.2 denote identical or different radicals from the series comprising hydrogen, optionally substituted alkyl, alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, partly hydrogenated aryl and optionally substituted aralkyl; R.sup.3 and R.sup.4 denote identical or different radicals from the series comprising hydrogen, alkyl, alkenyl and optionally substituted aralkyl; Y denotes hydrogen or hydroxyl and Z denotes hydrogen, or Y and Z together denote oxo, and X denotes optionally substituted alkyl, alkenyl, cycloalkyl, optionally substituted 4-piperidinyl, optionally substituted aryl or indolyl, processes for their preparation, medicaments containing these compounds and their use, and to intermediates in their preparation.

Abstract: Compounds of the formula I ##STR1## in which the carboxyl group on carbon atom 3 is orientated in the endo-position relative to the bicyclic ring system of cis-configuration, and in which R.sup.1 denotes hydrogen, allyl, vinyl or a side-chain of a naturally occurring .alpha.-aminoacid, which may be protected, R.sup.2 denotes hydrogen, alkyl, alkenyl or aralkyl, Y denotes hydrogen or hydroxyl and Z denotes hydrogen, or Y and Z together denote oxygen, and X denotes alkyl, alkenyl or cycloalkyl, or aryl which is optionally mono-, di- or tri-substituted by alkyl, alkoxy, hydroxyl, halogen, nitro, amino, alkylamino, dialkylamino or methylenedioxy, or denotes indol-3-yl, a process for their preparation, agents containing these compounds and their use.

Abstract: The invention relates to derivatives of cis,endo-2-azabicyclo[5.3.0]decane-3-carboxylic acid of the formula I ##STR1## in which R denotes hydrogen, alkyl, alkenyl or aralkyl, R.sup.1 denotes hydrogen, allyl, vinyl or a side chain of an optionally protected naturally occurring .alpha.-aminoacid, R.sup.2 denotes hydrogen, alkyl, alkenyl or aralkyl, Y denotes hydrogen or hydroxyl, Z denotes hydrogen, or Y and Z together denote oxygen, X denotes alkyl, alkenyl, cycloalkyl, aryl which can be substituted once, twice or three times by alkyl, alkoxy, hydroxyl, halogen, nitro, amino, alkylamino, dialkylamino or methylenedioxy, or denotes indol-3-yl, and their physiologically acceptable salts, a process for their preparation, agents containing them and their use.

Abstract: The invention relates to compounds of the formula I ##STR1## in which n denotes 0 or 1,R denotes hydrogen, alkyl or aralky, R.sup.1 denotes hydrogen or alkyl, which can optionally be substituted by amino, acylamino or benzoylamino, alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, which each can be substituted by alkyl, alkoxy or halogen, arylalkyl or aroylalkyl, both of which can be substituted in the aryl radical as defined in the aforegoing, a monocyclic or bicyclic sulfur or oxygen and/or nitrogen heterocyclic radical, or a side chain of a naturally occurring aminoacid, R.sup.

Abstract: The invention relates to new spirocyclic aminoacid derivatives of the formula I ##STR1## in which m denotes 1 or 2, n denotes 0 or 1, R denotes hydrogen, alkyl or aralkyl, R.sup.1 denotes hydrogen or alkyl which can be optionally substituted by amino, acylamino or benzoylamino, alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, each of which can be substituted by alkyl, alkoxy or halogen, arylalkyl or aroylalkyl, both of which can be substituted as defined above in the aryl radical, an S- or O- and/or N-heterocyclic radical or a side chain of an .alpha.-aminoacid, R.sup.

Abstract: The invention relates to new derivatives of tricyclic aminoacids, of the formula I ##STR1## in which n denotes 0 or 1, A denotes --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --, R denotes hydrogen, alkyl or aralkyl, R.sup.1 denotes hydrogen, or alkyl, which can optionally be substituted by amino, acylamino or benzoylamino, or alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, each of which can be substituted by alkyl, alkoxy or halogen, or aralkyl or aroylalkyl, both of which can be substituted as defined above, or a monocyclic or bicyclic S--, O-- and/or N-heterocyclene radical, or a side chain of a naturally occurring aminoacid, which may be protected, R.sup.

Abstract: A seed planter is provided with a stationary, funnel-shaped bin whose lower-end extension is constructed as a pair of electromagnetically, pneumatically, or mechanically pivoted brackets, defining a duct smaller than the grain when the brackets are closed. Other seeds are blown out of the funnel while one is retained until deposited upon briefly opening the brackets.

Abstract: The invention relates to compounds of the formula I ##STR1## in which n denotes 0 or 1, R denotes hydrogen, alkyl, alkenyl or aralkyl, R.sup.1 denotes hydrogen or alkyl, which can optionally be substituted by amino, acylamino or benzoylamino, alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, each of which can be substituted by alkyl, alkoxy or halogen, aralkyl or aroylalkyl, both of which can be substituted in the aryl radical as defined previously, a monocyclic or bicyclic S- or O- and/or N-heterocyclic radical or a side chain of an aminoacid, R.sup.

Abstract: The invention relates to compounds of the formula I ##STR1## in which n denotes 0 or 1,R denotes hydrogen, alkyl or aralkyl, R.sup.1 denotes hydrogen or alkyl, which can optionally be substituted by amino, acylamino or benzoylamino, alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, which each can be substituted by alkyl, alkoxy or halogen, arylalkyl or aroylalkyl, both of which can be substituted in the aryl radical as defined in the aforegoing, a monocyclic or bicyclic sulfur or oxygen and/or nitrogen heterocyclic radical, or a side chain of a naturally occurring aminoacid, R.sup.

Abstract: The invention relates to compounds of the formula I ##STR1## in which n denotes 1, 2, 3 or 4, R is alkyl, alkenyl cycloalkyl, aryl, optionally mono-, di- oder trisubstituted by alkyl, alkoxy, hydroxy, halogen, nitro, amino, alkylamino, dialkylamino or methylenedioxy, or indol-3-yl, R.sup.1 denotes an optionally protected radical of a naturally occurring amino acid HOOC--CH(NH.sub.2)--R.sup.1, R.sup.2 denotes hydrogen, alkyl or optionally nitro-substituted aralkyl, R.sup.3 denotes hydrogen, alkyl or cycloalkyl or optionally nitro-substituted aralkyl and X denotes 2 hydrogen atoms or 1 oxygen atom, their physiologically tolerated salts with acids and, if R.sup.2 and/or R.sup.3 denote hydrogen, with bases, a process for their preparation, agents containing these derivatives and their use as medicaments.

Abstract: The invention relates to new derivatives of tricyclic aminoacids, of the formula I ##STR1## in which n denotes 0 or 1, A denotes --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --, R denotes hydrogen, alkyl or aralkyl, R.sup.1 denotes hydrogen, or alkyl, which can optionally be substituted by amino, acylamino or benzoylamino, or alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, each of which can be substituted by alkyl, alkoxy or halogen, or aralkyl or aroylalkyl, both of which can be substituted as defined above, or a monocyclic or bicyclic S-, O- and/or N-heterocyclene radical, or a side chain of a naturally occurring aminoacid, which may be protected, R.sup.

Abstract: Optoelectrical coupling arrangement composed of a carrier element having a side face and provided with at least one trough-shaped recess extending to the side face, at least one beam waveguide element fastened in the recess and presenting an end face positioned to lie in the region of the one side face of the carrier element, and at least one photodetector fastened to the side face and having a light-sensitive region positioned to receive a substantial portion of the light emanating from the end face of the beam waveguide element. The carrier element comprises at least one electrical conductive path connected electrically to the photodetector.

Abstract: A funnel-shaped device is provided with one or two segments serving as brackets to enlarge the bottom opening of the funnel which, when closed, is smaller than the smallest piece of grain to be deposited; a centrally disposed air tube blows air axially toward the bottom opening to cause a single piece of grain to be aerodynamically held on the opening while the remainder of the grains hover at a higher level. A slide element such as a fork or the like can be removably disposed at an intermediate level, possibly to serve for opening a single-bracket element. This permits a lower hovering level and a correspondingly increasing cycle time and depositing rate.

Abstract: A multiple-row cell wheel assembly having in each row a plurality of circumferentially spaced, outwardly diverging, generally conical seed-receiving cells wherein the cells in one row are circumferentially offset relative to the cells in an adjacent row.

Abstract: Apparatus for separating and/or counting individual ones of a plurality of substantially similarly shaped particles, elements, grains, or the like, such as grains of seed, pills, etc., and including a hollow rotating drum, constructed to have plural, inwardly tapering indentations, terminating in a bore open to the interior of the drum and having at the bottom of the indentation dimensions smaller than the particles so that the particles cannot traverse the bore, the indentations being wider than the particles at the surface of the drum, the indentation dimensioned to hold at least one particle each. A nozzle directs an air jet towards the drum at direction and position so that the air strikes along the leading wall portion of the closest indentation as the drum rotates. Particles are fed towards the drum, so that at least one particle is in each indentation as it passes the jet.