摘要:
The current invention is directed towards mixtures of compounds, comprising (A) in the range of from 93 to 97% by weight compound of general formula (I) (B) in the range of from 3 to 6.5% by weight compound of general formula (II) (C) in the range of from 0.2 to 0.5% by weight compound of general formula (III) wherein the integers are defined as follows: R1 is —(CH2)nCH3, R2 is —(CH2)n+2CH3, R3 is —(CH2)n+1CH(CH3)2, R4 is —(CH2)n−1CH(CH3)2 G1 selected from monosaccharides with 4 to 6 carbon atoms, x in the range of from 1.1 to 10, n is a number in the range of from 1 to 4.
摘要:
N-acyl modified sialic acid (α-(2→6))-D-aminopyranose derivatives, their synthesis methods and uses are disclosed. Sialic acid (α-(2→6))-D-aminopyranose derivatives represented by formula 1 are synthesized by using D-aminogalactose (glucose) and sialic acid as raw materials, which are coupled with carrier proteins or polypeptides to obtain glycoprotein (glycopeptide) conjugates. Acetyl is replaced by derivative acyl in the structures of said compounds, therefore the compounds show good activity in antitumor vaccines.
摘要:
The invention relates to non-systemic TGR5 agonist useful in the treatment of chemotherapy-induced diarrhea, diabetes, Type II diabetes, gestational diabetes, impaired fasting glucose, impaired glucose tolerance, insulin resistance, hyperglycemia, obesity, metabolic syndrome, ulcerative colitis, Crohn's disease, disorders associated with parenteral nutrition especially during short bowel syndrome, and irritable bowel syndrome (IBS), and other TGR5 associated diseases and disorders, having the Formula: where R1, R2, R2′, R3, R4, X1, X2, X3, X4, Q, and n are described herein.
摘要:
The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.
摘要:
A method for the development of a library of modified sophorolipids using a wide-range of chemical and enzyme catalyst tools to identify modified sophorolipids that can be used in pure form, as mixtures with other modified sophorolipids, as mixtures with natural sophorolipids, as mixtures with modified and natural sophorolipids, and as mixtures with other compounds known by one skilled in the art for use in the dispersion, solubilization or emulsification of various oil types and nutraceuticals, and modified sophorolipids for use in dispersion, solubilization or emulsification processes.
摘要:
The present invention relates to an apparatus and method for separating glycoglycerolipids and also glycoglycerolipids and glycosphingolipids from a lipid phase that contains glycoglycerolipids and acyl glycerides or glycoglycerolipids and glycosphingolipids and acyl glycerides, in mild conditions with no hydrolysis and while at the same time effectively depleting the lipid phase of said glycoglycerolipids, glycoglycerolipids and glycosphingolipids and their accompanying substances using an aqueous extraction process.
摘要:
Disclosed are compositions and methods for the electrochemical detection of enzymes, such as enzymes that are indicative of disease, disorders, or pathogens, such as viruses, bacteria, and fungi, or other disorders. These methods can be used in point-of-care diagnostic assays for the detection of disease, disorder, or pathogen (e.g., to identify the strain of pathogen infecting a patient in a healthcare setting). The electrochemical methods described herein can also be used to assess the susceptibility of a pathogen to an antipathogen drug. Also provided are probes suitable for use in conjunction with the methods described herein.
摘要:
The present invention involves a compound represented by general formula (I), a derivative thereof and a use thereof: wherein R1, R2, R3, R4, R5a, R5b, R5c and X are defined as in the description.
摘要:
Amphiphilic calixarene glycoside compounds, the preparation of such compounds, and the use of such compounds for selectively extracting, solubilizing and stabilizing membrane proteins.
摘要:
The present invention relates to carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs. The carbon-based fluorescent nano-agents may be used in the analysis of the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and may be recovered from the reservoir for the determination of hydrocarbon flow rates and retention times.