专利号:EP-1309698-B1 优先权日:2000-07-21 标 题:A cytochrome p450 enzyme associated with the synthesis of delta-12 -epoxy groups in fatty acids of plants 发明人:CAHOON EDGAR B 权利人:DU PONT 摘要:An isolated nucleic acid fragment encoding a cytochrome P450 enzyme associated with the synthesis of plant DELTA12-epoxy fatty acids is disclosed. The invention also relates to making a chimeric construct encoding all or a portion of the cytochrome P450 enzymes associated with the synthesis of plant DELTA12-epoxy fatty acids, in sense or antisense orientation, wherein expression of the chimeric construct results in production of altered levels of the cytochrome P450 enzymes associated with the synthesis of plant DELTA12-epoxy fatty acids in a transformed host cell.
专利号:WO-2018020240-A1 优先权日:2016-07-27 标 题:Process for the synthesis of semiconductor nanocrystals 发明人:HOU BO; CHA SEUNGNAM 权利人:UNIV OXFORD INNOVATION LTD 摘要:The invention relates to a process for the synthesis of semiconductor nanocrystals, comprising mixing a nonaqueous solution of a metal precursor with a solid-state chalcogen and reacting the resulting mixture at a temperature of about 90 °C or greater. In another aspect the invention relates to the use of a solid chalcogen in the heterogeneous synthesis of metal chalcogenide semiconductor nanocrystals. Semiconductor nanocrystals obtainable by the processes of the invention are further provided. In particular, nanocrystalline PbS or PbSe having a band gap of greater than 1.6 eV and/or a photoluminescence emission wavelength of about 440 to about 515 nm, and nanocrystalline ZnS or ZnSe having a photoluminescence emission wavelength of about 410 to about 430 nm, and solar cells comprising such nanocrystals, are provided.
专利号:US-4451565-A 优先权日:1981-03-10 标 题:Enzyme-mediated synthesis of esters and lactones 发明人:GATFIELD IAN; SAND THEODOR 权利人:HAARMANN & REIMER GMBH 摘要:In the enzyme-mediated synthesis of an ester or lactone from at least one carboxylic acid of the formula R-CH2-CH2-COOH wherein R is a hydrogen atom, or a hydrocarbon radical which has 1 to 21 carbon atoms and which can be optionally substituted by hydroxyl groups or alkoxy groups with 1 to 10 carbon atoms, with at least one primary or secondary alcohol having 1 to 15 carbon atoms, the improvement which comprises employing as the enzyme the esterase from Mucor miehei and effecting the synthesis in the absence of water. Advantageously, the synthesis is effected at about room temperature, the mol ratio of carboxylic acid to alcohol is from about 1:1 to 1:1.1, and the enzyme is used in a quantity of about 3 to 20% by weight of the carboxylic acid. The absence of water facilitates recovery, as by distillation.
专利号:US-9643915-B2 优先权日:2013-03-15 标题:Methods for the synthesis of sphingomyelins and dihydrosphingomyelins 发明人:ONICIU DANIELA CARMEN; HECKHOFF STEFAN; OSWALD BENOIT; REBMANN PETER; PEER ANDREAS; GONZALEZ MIGUEL; SAUTER PATRIK 权利人:CERENIS THERAPEUTICS HOLDING SA 摘要:The present invention includes methods for the synthesis of sphingomyelins and dihydrosphingomyelins. The present invention also includes methods for the synthesis of sphingosines and dihydrosphingosines. The present invention further includes methods for the synthesis of ceramides and dihydroceramides.
专利号:US-9708354-B2 优先权日:2013-03-15 标 题:Methods for the synthesis of sphingomyelins and dihydrosphingomyelins 发明人:ONICIU DANIELA CARMEN; HECKHOFF STEFAN; OSWALD BENOIT; REBMANN PETER; PEER ANDREAS; GONZALEZ MIGUEL; SAUTER PATRIK 权利人:CERENIS THERAPEUTICS HOLDING SA 摘要:The present invention includes methods for the synthesis of sphingomyelins and dihydrosphingomyelins. The present invention also includes methods for the synthesis of sphingosines and dihydrosphingosines. The present invention further includes methods for the synthesis of ceramides and dihydroceramides.
专利号:WO-2022034429-A1 优先权日:2020-08-10 标 题 :PROCESS OF SYNTHESIS OF β-6'SULFOQUINOVOSYL DIACYLGLYCEROLS 发明人:MANZO EMILIANO; FONTANA ANGELO; ZIACO MARCELLO 权利人:BIOSEARCH S R L 摘要:The present invention relates to a synthesis process of β-6-sulfoquinovosyl-diacylglycerols. In particular, said process is for the synthesis of the compounds 1,2-O-distearoyl-3-O-(β- sulfoquinovosyl)- R/S -glycerol, 1,2-O-distearoyl-3-O-(β-sulfoquinovosyl)- R -glycerol or 1,2- O-distearoyl-3-O-(β-sulfoquinovosyl)- S -glycerol, named respectively Sulfavant A, Sulfavant R and Sulfavant S.
参考文献:10.1007/s00709-011-0303-4 摘要:Shukla E, Singh SS, Singh P, Mishra AK. Chemotaxonomy of heterocystous cyanobacteria using FAME profiling as species markers. Protoplasma. 2012 Jul;249(3):651–61. doi: 10.1007/s00709-011-0303-4.