CAS: 2306-22-1; (+/-)-Citramalic Acid Dipotassium Salt

专利信息

专利号:US-11046978-B2
优先权日:2016-03-16
标 题:Synthesis of isoprenoids and derivatives
发明人：GONZALEZ RAMON; CLOMBURG JAMES M; CHEONG SEOKJUNG
权利人:UNIV RICE WILLIAM M
摘要:This disclosure generally relates to the use of enzyme combinations or recombinant microbes comprising same to make isoprenoid precursors, isoprenoids and derivatives thereof including prenylated aromatic compounds. Novel metabolic pathways exploiting Claisen, aldol, and acyioin condensations are used instead of the natural mevalonate (MVA) pathway or 1-deoxy-d-xylulose 5-phosphate (DXP) pathways for generating isoprenoid precursors such as isopentenyl pyrophosphate (IPP), dimethylallyl pyrophosphate (DMAPP), and geranyl pyrophosphate (GPP). These pathways have the potential for better carbon and or energy efficiency than native pathways. Both decarboxylative and non-carboxylative condensations are utilized, enabling product synthesis from a number of different starting compounds. These condensation reactions serve as a platform for the synthesis of isoprenoid precursors when utilized in combination with a variety of metabolic pathways and enzymes for carbon rearrangement and the addition/removal of functional groups. Isoprenoid alcohols are key intermediary products for the production of isoprenoid precursors in these novel synthetic metabolic pathways.

专利号:US-2024391961-A1
优先权日:2021-08-25
标题:Autonomous organisms for synthesis of permanently phosphorylated proteins
发明人：COOLEY RICHARD B; MEHL RYAN A; ZHU PHILLIP
权利人:UNIV OREGON STATE
摘要:Embodiments of the present disclosure provide compositions and methods for biosynthesizing a stable, functional mimic of phosphoserine. The compositions and methods described herein genetically program a host cell to express a biosynthetic pathway that can synthesize the amino acid, 2-amino-4-phosphobobutyric acid, that is a non-hydrolyzable phosphoserine (nhpSer) because it contains a carbon-phosphorus, e.g., phosphonate, bond. In one embodiment the genetically programed cells express the enzymes of a pathway from a Streptomyces bacterium . In some embodiments, nhpSer is translationally incorporated into protein of interest at one or more programmed UAG amber codons using Genetic Code Expansion (GCE) technology.

专利号:US-2004110228-A1
优先权日:2002-04-01
标 题:Combinatorial organic synthesis of unique biologically active compounds
发明人：MCALPINE SHELLI R; TAYLOR RACHEL E; BOLLA MEGAN L; SEGALL ANCA M
摘要:The invention provides a method for making a combinatorial library of cyclic compounds, such as Holliday junction-trapping compounds, comprising the steps of (a) obtaining a plurality of trimers according to the generic structure X 1- X 2- X 3 , wherein X 1 , X 2 and X 3 can be independently any naturally or nonnaturally occurring amino acids or peptidomimetics thereof; (b) optionally coupling a spacer S to the trimer at either end; (c) cyclizing two trimers or trimer-spacer conjugates in a head-to-tail orientation; thereby obtaining a combinatorial library of compounds, wherein the library does not include an unmodifed or naturally occurring Holliday Junction-trapping compounds. The invention additionally provides methods macrocyclic compounds that are synergimycin derivatives.

专利号:US-2013288320-A1
优先权日:2012-04-27
标题 :Methods and microorganisms for increasing the biological synthesis of difunctional alkanes
发明人：LAU MAN KIT
权利人:BIOAMBER INC
摘要:A method of increasing the production a difunctional alkane in a microorganism that produces a difunctional alkane from alpha-keto acid by increasing the production of homocitrate in the cell relative to a wild-type or parent cell. The production of homocitrate may be obtained by engineering pathways that increase the production of alpha-ketoacid, such as alpha-ketoglutarate.

专利号:US-9828380-B2
优先权日:2015-04-10
标题 :Efficient method for the preparation of tofacitinib citrate
发明人：BONANOMI JACOPO; DEFIORE STELLA; NOVO BARBARA
权利人:OLON SPA
摘要:Disclosed is a novel process for the synthesis of tofacitinib citrate on an industrial scale with high yields and purity starting with cis-(1-benzyl-4-methyl-piperidin-3-yl)methylamine bis-hydrochloride racemate (intermediate VIII), which comprises:n 1. Condensation between intermediates VII and VIII to give intermediate VI 2. Hydrogenation of intermediate VI to give intermediate V 3. Resolution of intermediate V to give intermediate IV with enantiomeric purity >99% 4. Release of intermediate IV in a basic medium to give intermediate III 5. N-acylation reaction of intermediate III to give II (tofacitinib) 6. Salification of intermediate II to give tofacitinib monocitrate (I)

专利号:US-7652168-B2
优先权日:2001-07-10
标 题 :Synthesis of taxol enhancers
发明人：CHEN SHOUJUN; SUN LIJUN; XIA ZHI-QIANG; KOVA KEIZO; ONO MITSUNORI
权利人:SYNTA PHARMACEUTICALS CORP
摘要:Disclosed is a method of preparing a thiohydrazide product compound from a hydrazide starting compound. The hydrazide starting compound is represented by Structural Formula (I): n nThe thiohydrazide product compound is represented by Structural Formula (II):n n nIn Structural Formulas (I)-(II), R 1 and R 2 are independently an aliphatic group, a substituted aliphatic group, an aryl group or a substituted aryl group, or R 1 and R 2 taken together with the carbon and nitrogen atoms to which they are bonded, form a non-aromatic heterocyclic ring optionally fused to an aromatic ring. When R 2 is an aryl group or a substituted aryl group, then R 5 is a hydrazine protecting group; and when R 2 is an aliphatic or substituted aliphatic group, then R 5 is —H or a hydrazine protecting group. R 10 is —H or a substituted or unsubstituted alkyl group. The method comprising the step of reacting the starting compound with a thionylating reagent.