专利号:US-11719709-B2 优先权日:2020-02-14 标题 :Water soluble polymer surfactant for synthesis of functionalized polystyrene nanobeads towards detection of bilirubin in human serum 发明人:MAKKAD SARABJOT KAUR; SYAMAKUMARI ASHA 权利人:COUNCIL SCIENT IND RES 摘要:The present invention provides a water soluble polymer surfactant (PS-DGlu) of formula I which is utilized for synthesis of functionalized polystyrene nanobead covalently incorporating (oligo) p-phenylenevinylene (OPV) nanosensor (PSG-OPV-n) which in turn is useful for the detection of bilirubin in human serum. The present invention further provides a process for the preparation of the water soluble polymer surfactant (PS-DGlu) of formula (I) and a mini emulsion polymerization process for the synthesis of PSG-OPV-n.wherein, n is 30-50.The PSG-OPV-n nanosensor beads show selectivity towards detection of bilirubin in presence of interferences such as glucose, sucrose, metal ions, cholesterol, and biliverdin with limit of detection of 20 nM. Ultimately, the invention also provides a kit for visual detection of bilirubin in human serum.
专利号:US-10730904-B2 优先权日:2012-11-14 标 题:Method for liquid-phase synthesis of nucleic acid 发明人:NONOGAWA MITSURU; NAGATA TOSHIAKI; SAITO HIDEKI; YASUMA TSUNEO 权利人:TAKEDA PHARMACEUTICALS CO 摘要:In this method, an oligonucleotide represented by formula (II) [wherein Y 1 , Q, Base, r and r′ are each as defined in claim 1 ] is prepared by using, as a synthesis unit, a novel nucleoside monomer compound represented by formula (I) [wherein X, R 1 , Y, Base, Z, Ar, R 2 , R 3 and n are each as defined in claim 1 ]. The novel nucleoside monomer compound is a nucleoside, the base moiety of which is substituted with an aromatic-hydrocarbon-ring-carbonyl or -thiocarbonyl group having at least one hydrophobic group. The method can dispense with column-chromatographic purification in every reaction, and enables base elongation not only in the 3′-direction but also in the 5′-direction, thus attaining efficient liquid-phase mass synthesis of an oligonucleotide.
专利号:US-11976081-B2 优先权日:2019-04-26 标题 :Intermediate of eribulin and synthesis method and use thereof 发明人:XU WEIPING 权利人:BEIJING TIENYI LUFU PHARMATECH CO LTD 摘要:An intermediate compound is prepared and used for the synthesis of halichondrin B, eribulin or an analog thereof, particularly a structural fragment C27-C35 thereof. The starting materials of the synthetic route are readily available, and the optical purity of the starting materials can be ensured, so that the optical purity of the structural fragment C27-C35 in halichondrin B, eribulin or the analog thereof is ensured. Steps for constructing a chiral center of the structural fragment C27-C35 feature higher diastereoselectivity and yield, in particular preparation methods of compounds of formulae (X), (XI), (XVI) and (XV). By-products of partial reactions can be removed only by recrystallization, which results in easy purification and significant reduce in cost.
专利号:US-2006052577-A1 优先权日:2001-02-06 标题:Methods of synthesis of polymers and copolymers from natural products 发明人:SWIFT GRAHAM; WESTMORELAND DAVID G; HUGHES KATHLEEN 权利人:SWIFT GRAHAM; WESTMORELAND DAVID G; HUGHES KATHLEEN 摘要:Described are polymers and copolymers containing sorbitol, citric acid, starch, aspartic acid, succinic anhydride, adipic acid mixtures thereof, methods of their synthesis and their uses.
专利号:US-8906425-B2 优先权日:2003-06-13 标 题:Stimulation of the synthesis of the activity of an isoform of lysyl oxidase-like LOXL for stimulating the formation of elastic fibers 发明人:PERRIER ERIC; CENIZO VALÉRIE; BOUEZ CHARBEL; SOMMER PASCAL; DAMOUR ODILE; GLEYZAL CLAUDINE; ANDRE VALÉRIE; REYMERMIER CORINNE 权利人:PERRIER ERIC; CENIZO VALÉRIE; BOUEZ CHARBEL; SOMMER PASCAL; DAMOUR ODILE; GLEYZAL CLAUDINE; ANDRE VALÉRIE; REYMERMIER CORINNE; BASF BEAUTY CARE SOLUTIONS F; CENTRE NAT RECH SCIENT 摘要:The invention relates to the stimulation of the synthesis and of the activity of an isoform of lysyl oxidase, and more particularly of the LOXL (lysyl oxidase-like) isoform. The invention relates notably to a method of identifying an active principle which stimulates the formation of elastic fibers. The aim of the invention is mainly to provide such a method of identification so as to provide compositions which enable stimulating the formation of elastic fibers.
专利号:US-5202235-A 优先权日:1986-08-18 标题 :Enzymatic method for the synthesis and separation of peptides 发明人:IACOBUCCI GUILLERMO A 权利人:COCA COLA CO 摘要:The present invention provides a method for the enzymatic synthesis of peptides accomplished by shifting the chemical equilibrium that exists in a reaction mixture between charged or ionized reacting amino acids and uncharged or non-ionized peptide product in the presence of a proteolytic enzyme such as thermolysin. The equilibrium is shifted by diffusion of the uncharged peptide product across an ion-rejection membrane which removes the uncharged peptide from the reaction mixture and preferably the diffused uncharged peptide is quickly converted to a charged species that cannot back-diffuse into the reaction mixture so that the uncharged peptide is effectively 'pulled' across the membrane.