摘要:
New 4-substituted azetidinones having the formulae I and II: ##STR1## wherein X is oxygen, sulfur or a moiety of the formula NR.sup.6 where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are defined hereafter, which are intermediates for the preparation of carbapenem and carbacephem antibacterials and processes for producing such antibacterials through the utilization of an acid mediated ring closure reaction.
摘要:
Compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.12, R.sup.16 and R.sup.17 are defined in the specification are provided. These compounds are useful as intermediates for the preparation of carbapenem antibacterials.
摘要:
Carbapenem antibiotic compounds of the general formula: ##STR1## wherein the moiety ##STR2## is a 4, 5 or 6 membered mono, di- or tri-substituted oxygen or sulfur containing ring; wherein Z is oxygen, sulfur, sulfoxide and sulfone, pharmaceutical compositions thereof useful for the treatment of bacterial infections, processes for preparing the compounds and new intermediates useful in the process.
摘要:
Carbapenem antibiotic compounds of the general formula: ##STR1## wherein the moiety ##STR2## is a 4, 5 or 6 membered mono, di- or tri- substituted oxygen or sulfur containing ring; wherein Z is oxygen, sulfur, sulfoxide and sulfone, pharmaceutical compositions thereof useful for the treatment of bacterial infections, method of inhibiting a Beta-lactamase enzyme by administering said compounds, processes for preparing the compounds and new intermediates useful in the process are disclosed.
摘要:
Flight control system for aircraft of the type provided with ailerons, elevators, upper surface spoilers, and upper surface air-brakes, a rudder and horizontal stabilizers with variable angle of incidence, said system comprising an electric control, in some cases without any mechanical emergency control for said upper surface spoilers and air-brakes.According to the invention:the ailerons and elevators are electrically controlled without any mechanical aid,the rudder is mechanically controlled, andthe horizontal stabilizers with variable angle of incidence are electrically controlled with mechanical aid.the electrical flight controls are optimized.
摘要:
A method for non-releasable fixing of at least one component to a further component is provided in which a hot rivet is introduced into an opening of the at least one first component and an end face of a shank of the hot rivet is welded to a surface of the further component. Subsequently, with plastic deformation of the hot rivet, the shank of the hot rivet is compressed until a head of the hot rivet lies with a pre-stressing force at least in areas on a surface of the at least one component. The pre-stressing force, with which the head of the hot rivet lies at least in areas on the surface of the at least one component, is adjusted to a predefined value.
摘要:
A process for forming amorphous atorvastatin comprising the steps of dissolving atorvastatin in a non-hydroxylic solvent and removing the solvent by freeze-drying, as well as processes of dissolving atorvastatin in a hydroxylic solvent with a solubilizing agent or an alkalizing agent or an antioxidant and removing the solvent by freeze-drying to afford amorphous atorvastatin.
摘要:
A chewing gum composition including a water insoluble base portion; a water soluble portion; and a therapeutically effective amount of varenicline or its pharmaceutical acceptable salt thereof. A method for reducing nicotine addiction and aiding in the cessation or lessening of tobacco use in an individual by administering to an oral cavity of an individual a chewing gum composition including an effective amount of varenicline or its pharmaceutical acceptable salt thereof; and chewing the gum composition to cause the varenicline or its pharmaceutical acceptable salt thereof to be released from the chewing gum composition into the oral cavity of the individual. A method of manufacturing a chewing gum composition.