Abstract:
The present invention discloses a series of benzoylamino-1,3-dioxacyclane compounds, of which compounds 1-21 were prepared via transacetalisation reaction between N-benzoylaminoglycol and 1,1,3,3-tetramethoxypropane; while compounds 22-48 were prepared via stereospecific acetalisation reaction between N-benzoylamino glycol and aromatic aldehyde, and if necessary, the nitro groups were reduced and further be salified with propane diacid and L-Arg or L-Lys. These compounds possess the structural type of PKC inhibitor and positive anti-inflammatory effect, and can be applied in medical fields as PKC inhibitor for corresponding therapy.
Abstract:
The present invention relates to the protected intermediates and the deprotected products of P6A, related to the protected pseudopeptides introducing the protected intermediateds of P6A to 3S-(2-Boc)-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid and the deprotected pseudopeptides, related to the protected pseudopeptides introducing the protected intermediateds of P6A to 3S-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid benzyl ester, related to the methods for their preparation, and related to their use as the thrombolytic agents.
Abstract:
The present invention relates to the protected intermediates and the deprotected products of P6A, related to the protected pseudopeptides introducing the protected intermediateds of P6A to 3S-(2-Boc)-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid and the deprotected pseudopeptides, related to the protected pseudopeptides introducing the protected intermediateds of P6A to 3S-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid benzyl ester, related to the methods for their preparation, and related to their use as the thrombolytic agents.
Abstract:
The present invention relates to a new kind of heavy metal chelating agents and a preparation process and uses thereof. The said heavy metal chelating agents are expressed in &agr;-[D(+)glucose-1-yl-amino]-&bgr;3-mercapto-(S)-propanoic acid (abbreviated to NGP,I) and/or N,N′-di[D(+)glucose-1-yl]-L-cystine (abbreviated to NGCD,II). In the process of preparation, glucose and cysteine are reacted with a base, with a reducing agent, and the obtained products are acidified to give NGP,I, which can be used in and/or as drugs, health foods and food additives for accelerating the excretion of heavy metals including Pb, Cd, Hg, Al, Sb, As, etc. The structural feature of the compounds of the present invention is that they contain glucose and cysteirie in their molecules. Compared with the heavy metal-excreting drugs of prior art, the compounds of the present invention have four advantages, namely suitability for oral administration, high ability to accelerate the excretion of heavy metals, high selectivity and less toxicity.
Abstract:
This invention relates to cyclic peptides, with the following formula (I) (SEQ ID NO: 1), cyclo(Xaa-Arg-Pro-Ala-Lys) (I) where Xaa is Ala, Gly, Glu, Gln, Asp, Asn, Arg or Lys. The cyclic peptides have thrombolytic effects. This invention also relates to cyclic peptide preparations.
Abstract:
The present disclosure provides new salts of 5-aminolevulinic acid (5-ALA) and new salts of 5-ALA esters, their preparation, formulation and use as photosensitizing agents in photodynamic therapy, diagnosis and cosmetic cares.
Abstract:
A computing device hosting a server identifies one or more potential typographical errors in a work using an initial reference. The computing device sends data indicative of the presence of the potential typographical errors to users. The computing device collects feedback for the work from the users. The feedback for the work indicates whether the potential typographical errors are author-intended strings. The computing device combines the user feedback for the work with user feedback for other works and sorts the combined user feedback based on one or more selected parameters. The computing device determines, based on the sorted user feedback, that one or more of the potential typographical errors includes an acceptable string and updates the initial reference to include the acceptable string.
Abstract:
Embodiments of the disclosed technology provide an electronic ink microcapsule and a method for producing the same, wherein the electronic ink microcapsule comprises gelatin, polyanion, and an electrophoretic suspension, and the polyanion comprises a hydrolyzate of styrene-maleic anhydride-hexafluorobutyl (meth)acrylate-vinyl triethoxysilane tetracopolymer.
Abstract:
A mobile broadband device and an assisted positioning method therefore are disclosed. A host initiates a positioning request to the mobile broadband device; a firmware of the mobile broadband device determines whether an assisted positioning function is needed for the positioning request received from the host, and when the assisted positioning function is needed, the device software initiates a request for acquiring assisted positioning data to the host; after receiving the request for acquiring the assisted positioning data from a device side, the host initiates the request for acquiring the assisted positioning data to a Secure User Plane Location (SUPL) server; the SUPL server sends positioning data to the host; after receiving the assisted positioning data, the host sends the assisted positioning data to the mobile broadband device; and the firmware of the mobile broadband device calculates standard Global Positioning System (GPS) data using the received assisted positioning data, and then outputs the standard GPS data to a positioning application program of the hose side. The disclosure enhances user experience, saves traffic for a user, increases benefits for the user, greatly reduces the load of the device side, improves the performance index of the product, and expands the application scope for the assisted positioning function.