摘要:
This invention relates to 4r-amino-1t-phenyl-1c-ethoxycarbonyl-cyclohexenes-(2) of formula I: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are hydrogen or alkyl having 1 to 4 carbon atoms, or one of the two groups is allyl, phenalkyl having 7 to 9 carbon atoms or .alpha.-methyl-.beta.-hydroxyethyl; or R.sub.1 and R.sub.2 together form a morpholino group, piperazino group substituted at the 4- position by methyl, benzyl, phenyl, 3-chlorophenyl, 4-chlorophenyl, 2-phenethyl or benzoyl, or a piperidino group substituted at the 4- position by hydroxyl, phenyl, 2-methoxyphenyl, 4-methoxyphenyl, methyl or benzyl and medically acceptable addition compounds derived from inorganic and organic acids or lower alkyl halides. The compounds of the present invention are prepared by separation of 4-amino-1-phenyl-1-ethoxycarbonyl-cyclohexenes-(2), described in U.S. Pat. application Ser. No. 226,509, filed Feb. 15, 1972, now U.S. Pat. No. 3,957,851 into the two possible geometrical isomers. The instant compounds, the 4r-amino-1t-phenyl-1c-ethoxycarbonyl-cyclohexenes-(2) of formula I, exhibit marked analgesic and neuroleptic activities and are useful for the alleviation and reduction of pain.
摘要:
The present invention relates to novel thiazolidinone acetic acid derivatives and their preparation. These derivatives show diuretic properties when used as pharmaceuticals.
摘要:
The present invention relates to novel thiazolidinone acetic acid derivatives and their preparation. These derivatives show diuretic properties when used as pharmaceuticals.
摘要:
A fuel cell system that employs a closed coolant loop. The system includes an expansion device having a flexible membrane, where a cooling fluid side of the membrane is in fluid communication with the cooling fluid in the coolant loop and an air side of the membrane is in communication with an air pocket. The air side of the expansion device is in air communication with an air compressor so that the pressure of the cooling fluid within the coolant loop changes as the stack pressure changes. The fuel cell system also includes a coolant reservoir that is in fluid communication with the cooling fluid in the coolant loop. Air and hydrogen bubbles within the cooling fluid are vented to the coolant reservoir where they accumulate. The coolant reservoir includes a level sensor indicating the level of the cooling fluid therein.
摘要:
A hydrogen feed system for a fuel cell arrangement in which the hydrogen can be taken at a higher pressure from a supply tank standing under pressure or under pressure from a reforming device and can be fed after relaxation to a lower pressure into the fuel cell arrangement, with a return flow loop being provided in the hydrogen circuit, so that a part of the non-consumed hydrogen emerging from the fuel cell arrangement can be fed back into the latter, is characterized in that a pump is provided which brings about the recirculation of the hydrogen and which can be driven from the pressure energy of the hydrogen taken from the tank or coming from a reforming unit.
摘要:
Mixtures comprise the dye of the formula I ##STR1## the dye C.I. Sulphur Black 1 (53 185), at least one disazo dye of the formula II ##STR2## where the ring A, X.sup.1, R.sup.1, R.sup.2 and R.sup.3 are each as defined in the description part, andat least one polyazo dye of the formula III ##STR3##
摘要:
Process for dyeing or printing glass fibers, in particular textile glass fibers in various forms, by dyeing or printing the fiber materials with anionic dyes in the presence of cationic compounds following an acid pretreatment. The cationic compounds may be applied to the fiber material before the actual dyeing or printing process or else be applied together with the dye from the same dyeing liquor or printing paste. Suitable cationic compounds are in particular polyquaternized ammonium compounds. Level dyeings are obtained on the glass fiber materials with good light fastness properties.
摘要:
The invention is concerned with partially new compounds of the general formula ##STR1## wherein R.sup.1 is a hydrogen atom or an alkyl group with up to four carbon atoms and R.sup.2 a substituted phenyl radical and the pharmacologically acceptable salts thereof.The compounds can be prepared according to known procedures and show surprisingly a cardiovascular efficacy. They are capable of decompensating cardiac insufficiencies to a large extent. In addition to the new compounds, claim is also made for pharmaceutical compositions which contain compounds according to the general formula and their application for controlling cardiac and vascular diseases.
摘要:
The invention discloses (+)-(3-methyl-4-oxo-5N-piperidinothiazolidin-2-ylidene)acetic acid esters and a process for their preparation. The process provides the dextrorotatory isomers substantially free from the corresponding levorotatory isomers. Antihypertensive pharmaceutical compositions comprising the dextrorotatory esters and methods for using said compositions are also disclosed.