synthesis (Total 72946 Patents Found)

A method for making a vinyl carbonate represented by the formula (I): CH 2 ═CHOC(O)X 1 R 1   (I) wherein X 1 is oxygen or sulfur and R 1 is a substituted or an unsubstituted aliphatic alkyl, aryl, aryl alkyl, olefinic, vinyl, or cycloaliphatic group comprises: (...
A methodology for translating conditional expressions of a non-Verilog hardware description language (HDL) program, not readily recognized by Verilog HDL, which can then be used to prove out a logic circuit design. IF/CASE/COND (ICC) expressions occurring within the HDL program that are not recognized by Verilog HDL ar...
A prosodic parameter for an input text is computed by storing a sentence of vocalized speech in a speech corpus memory, searching for a stored text having a similar prosody to an input text as a key to the speech corpus and modifying the prosodic parameter based upon the search results. Because a plurality of prosodic ...
A process for the synthesis of chlorotrifluoroethylene (PCTFE) (co)polymers, containing at least 80% by moles of CTFE, being the complement to 100 one or more fluorinated monomers, preferably the complement to 100 is formed of one or more perfluorinated monomers, characterized in that the reaction medium comprises (per...
In the method for the synthesis of a polypeptide chain on an insoluble solid support wherein an amino acid is introduced into a reactor packed with an insoluble solid support containing substituent groups reactive with said amino acid, coupling said amino acid to said support by condensation reaction with said reactive...
A process is provided for the semi-synthesis of taxane intermediates useful in the preparation of paclitaxel and docetaxel, in particular, the semi-synthesis of protected taxane intermediate in a one pot reaction of protecting the C-7, 10 and attaching a side chain at C-13 position and subsequently deprotecting the gro...
Methods for synthesis of 1-(acyloxy)-alkyl carbamates, particularly, the synthesis of 1-(acyloxy)-alkyl carbamate prodrugs of primary or secondary amine-containing drugs are described. Also described are methods for synthesis of 1-(acyloxy)-alkyl N-hydroxysuccinimidyl carbonates which are useful intermediates in the sy...
The invention is directed to isomeric mixtures of cyclosporine analogues that are structurally similar to cyclosporine A. The mixtures possess enhanced efficacy and reduced toxicity over the individual isomers and over naturally occurring and other presently known cyclosporines and cyclosporine derivatives. Embodiments...
A pressure-measuring vessel system for microwave assisted chemical processes is disclosed. The vessel system includes a pressure resistant vessel that is otherwise transparent to microwave radiation, a pressure-resistant closure for the mouth of the vessel, with portions of the closure including a pressure resistant sy...
Disclosed is a process for making the compound of formula I: using the compounds of formulas II, Q, and XI or XII: wherein A is selected from the group consisting of Br, Cl and I (with Br being preferred); and R represents (C 1 -C 10 )alkyl. Also dis...
A method for the fabrication of nanostructured semiconducting, photoconductive, photovoltaic, optoelectronic and electrical battery thin films and materials at low temperature, with no molecular template and no organic contaminants. High-quality metal oxide semiconductor, photovoltaic and optoelectronic materials can b...
The present invention relates to catalysts, more particularly to a cobalt-containing catalyst composition. The present invention further relates to a process for preparing a cobalt-containing catalyst precursor, a process for preparing a cobalt-containing catalyst, and a hydrocarbon synthesis process wherein such a cat...
In one embodiment, a circuit analysis method includes obtaining a netlist of a circuit, generating a reduced model from the netlist, using the reduced model to synthesize a positive netlist having no controlled current or voltage sources, unstamping the synthesized positive netlist, and simulating the circuit using the...
A system is provided that converts an input, such as audio data, into one or more haptic effects. The system applies a granular synthesis algorithm to the input in order to generate a haptic signal. The system subsequently outputs the one or more haptic effects based on the generated haptic signal. The system can also ...
Embodiments of methods and/or apparatus can allow a viewing practitioner to adjust how image content can combined from multiple radiographic images of the same subject or different image processing of one image of a subject to control additional information gained by the combination and/or for improved diagnosis. In on...
A task-based multi-process design synthesis methodology relies on a plurality of child processes to assist a parent process in performing optimizations on an integrated circuit design. Objects from an integrated circuit design are grouped into subsets and assigned to child processes, with each child process performing ...
In a frequency synthesis system with self-calibrated loop stability and bandwidth, a detector produces a detection signal based on a difference between an input signal and a feedback signal; a charge pump produces a control signal based on the detection signal; a filter produces a tuning signal and a source current bas...
Methods for preparing integral synthesis gas conversion catalyst extrudates including an oxide of a Fischer-Tropsch (FT) metal component and a zeolite component are disclosed. The oxide of the FT metal component is precipitated from a solution into crystallites having a particle size between about 2 nm and about 30 nm....
The present invention provides compounds with imaging moieties for imaging a subject. The present invention also relates to systems, compositions, and methods for the synthesis and use of imaging agents, or precursors thereof. An imaging agent precursor may be converted to an imaging agent using the methods described h...
In the production of ammonia from synthesis gas which has had its CO2 absorbed by cold liquid, e.g. by cold methanol, the improvement of regenerating CO2-loaded liquid with purged (waste) gas from the ammonia synthesis cycle, said purged gas being conventionally withdrawn to maintain a low level of inert gases in the r...
The invention relates to a method for enzymatically synthesizing an (oligo)peptide, comprising coupling (a) an (oligo)peptide C-terminal ester or thioester and (b) an (oligo)peptide nucleophile having an N-terminally unprotected amine, wherein the coupling is carried out in a fluid comprising water, and wherein the cou...
Disclosed are 2-methylene analogs of vitamin D 3 and related compounds, their biological activities, and various pharmaceutical uses for these analogs. Particularly disclosed are 1α-hydroxy-2-methylene-vitamin D 3 , (20S)-1α-hydroxy-2-methylene-vitamin D 3 , and (5E)-1α,25-dihydroxy-2-methylene-vitamin D 3 , their ...
Disclosed are single step and multi-step methods of making functional polyisobutylene (PIB)-containing oligomers and polymers and the materials made thereby. In the single step method a functional group containing PIB oligomer or polymer is made under cationic polymerization conditions in a direct, one step reaction. I...
Compounds that are fatty acid synthesis modulators are provided. The compounds may be used to treat disorders characterized by disregulation of the fatty acid synthase function by modulating the function and/or the fatty acid synthase pathway. Methods are provided for treating such disorders including viral infections,...
In various aspects, systems and methods are provided for integration of molten carbonate fuel cells with a methanol synthesis process. The molten carbonate fuel cells can be integrated with a methanol synthesis process in various manners, including providing synthesis gas for use in producing methanol. Additionally, in...
An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is on...
The methods of manufacturing a curable wax, such as an acrylate of a hydroxyl-terminated polyethylene wax having the structure CH 3 —(CH 2 ) n —CH 2 OH, where n=22-24, are disclosed. The methods may include reacting a wax having a transformable functional group and a curable compound in the presence of an organic s...
Novel pyroglutamic acid derivatives (I), wherein R 1 is —OH, —ORa, wherein Ra is alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, aralkyl or heterocyclyl; R 2 , R 3 and R 4 are independently H, a nitrogen protecting group which hydrolyzes under acidic conditions or phtalamide; X is a pharmaceutically acceptable a...
A process for converting a hydrocarbon feedstock into a synthesis gas includes: (i) passing a first stream including a hydrocarbon and steam to externally-heated catalyst-filled tubes in a heat exchange reformer where steam reforming reactions take place to generate a first reformed gas mixture, (ii) passing a second s...
A method and a device for operating an arrangement of sound transducers according to the wave-field synthesis principle. In order to supply an extended audience region with the same signal, the same signal content is generated by at least two virtual sound sources, which are arranged such that the wavefronts thereof ar...