CAS: 121-79-9; Propyl 3,4,5-Trihydroxybenzoate

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CAS号149-91-7 没食子酸; 3,4,5-三羟基苯甲酸 | CAS号71-36-3 正丁醇 | CAS号71-23-8 正丙醇 | CAS号5424-20-4 单宁酸 | CAS号99-24-1 没食子酸甲酯 | CAS号18483-17-5 1,3,6-三没食子酰葡萄糖 | CAS号149-91-7 没食子酸; 3,4,5-三羟基苯甲酸 | CAS号71-23-8 正丙醇 | CAS号138433-01-9 (3,4,5-trihexad... | CAS号126229-90-1 3,4,5-tri°Ctade... | CAS号138433-00-8 (3,4,5-tridodec... | CAS号853055-43-3 3,4,5-tri(tetra... | CAS号79831-88-2 3,4,5-三(苄氧基)苯甲醇 | CAS号6137-86-6 3,4,5-tris(phen... | CAS号6178-45-6 propyl 3,4,5-tr...

丙醇,单宁酸置于tannase From Aspergillus Oryzae体系中,用 正己烷,水 用作溶剂,化学反应生成没食子酸丙酯
参考文献:Synthesis Of Propyl Gallate From Tannic Acid Catalyzed By Tannase From Aspergillus Oryzae: Process Optimization Of Transesterification In Anhydrous Media
标题:Synthesis Of Propyl Gallate From Tannic Acid Catalyzed By Tannase From Aspergillus Oryzae: Process Optimization Of Transesterification In Anhydrous Media
摘要:Improving The Catalytic Capability Of Enzyme Is An Important Challenge Of Biocatalysis In Organic Medium. Optimization Of Organic Reaction System And Reaction Mode Can Elevate The Catalytic Ability. In Order To Enhance The Catalytic Efficiency Of Tannase-Catalyzed Transesterification From Tannic Acid,Process Parameters Of The Reaction And Reaction Mode Were Optimized Further To Improve The Conversion Rate Of Substrate. The Result Showed That With Hexane As Solvent,A Conversion Rate Of Substrate,75%,Was Achieved At 40 Degrees C In 20 Ml Reaction Mixture Composed Of 0.75% Water And 7.5% N-Propanol,And That Semicontinuous Catalysis Was The Most Favorable For Production Of Propyl Gallate,Its Average Production Rate Was 2.5-Fold That Of Batch Catalysis. By Scc,A Noted Computative Conversion Rate Of Approximate,90%,Was Obtained. Thus,It Is Expected That This Study May Present An Efficient And Ecofriendly Method For Industrial Production Of Pg. (C) 2012 Elsevier B.V. All Rights Reserved.
Doi:10.1016/j.Molcatb.2012.06.003

专利信息

专利号:US-7230101-B1
优先权日:2002-08-28
标 题:Synthesis of methotrexate-containing heterodimeric molecules
发明人：MURTHI KRISHNA K; SMITH CHASE C
权利人:GPC BIOTECH INC
摘要:The present invention relates to novel compositions of methotrexate-containing heterodimeric probe molecules, also known as chemical inducers of dimerization (CID), useful in three-hybrid assays. The invention further relates to synthesis of said compositions and their intermediates. Another aspect of the invention is a method for using the heterodimeric probe molecules described herein in drug screens to identify potential protein targets to a given ligand, optimize protein-ligand interactions, or identify potential ligands for a given protein target. In certain embodiments, the invention contemplates the synthesis of the following methotrexate-containing heterodimeric probe:

专利号:US-5861532-A
优先权日:1997-03-04
标 题:Solid-phase synthesis of N-alkyl amides
发明人：BROWN EDWARD G; NUSS JOHN M
权利人:CHIRON CORP
摘要:Methods for solid phase synthesis of N-alkyl amides comprise reductive amination of carbonyl compounds using a reducing agent and an amine-containing linker bound to a solid support. The methods afford high yields of linker-bound, monoalkylated amines, and subsequent coupling with acid derivatives provide derivatized N-substituted amides in excellent yields after cleavage from the solid-phase. Compositions useful in solid phase synthesis are also described.

专利号:US-2006128930-A1
优先权日:2004-12-03
标题 :Synthesis of sterically hindered phenol based macromolecular antioxidants
发明人：DHAWAN ASHISH; CHOLLI ASHOK L
权利人:DHAWAN ASHISH; CHOLLI ASHOK L
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes polymerizing and alkylating a phenol containing monomer represented by the following structural formula: n n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-6579725-B1
优先权日:1999-03-05
标题 :Linkers for synthesis of oligosaccharides on solid supports
发明人：SEEBERGER PETER H; ANDRADE RODRIGO B
权利人:MASSACHUSETTS INST TECHNOLOGY
摘要:The present invention relates to versatile linkers for tethering a molecule to a solid support, e.g., for tethering a monomer, oligomer or polymer to a solid support, which are stable to a wide range of reaction conditions, but can be cleaved under well-defined conditions, thereby liberating the molecule from the solid support. Preferably, the linkers are used to tether to the solid support unprotected, partially-protected or fully-protected monosaccharides or oligosaccharides, or unprotected, partially-protected or fully-protected glycoconjugates. The linkers of the present invention may be used to tether to solid supports building blocks useful in the assembly of libraries of other types of small molecules. The present invention also relates to a molecule or plurality of molecules tethered to the solid support via a linker or linkers of the present invention. The present invention also relates to processes for synthesizing molecules, e.g., monomers, oligomers or polymers, on a solid support, wherein a starting material in the synthesis of the molecule, intermediates in the synthesis of the molecule, and the molecule itself are tethered to the solid support during the process via one of the linkers of the present invention. In certain processes of the present invention, the molecule is liberated from the solid support by cleavage of the linker of the present invention.

专利号:US-7678877-B2
优先权日:2004-12-03
标题 :Process for the synthesis of polyalkylphenol antioxidants
发明人：YANG SUIZHOU; CHOLLI ASHOK L
权利人:POLNOX CORP
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes partially etherifying, polymerizing and thermally rearranging a phenol containing monomer represented by the following structural formula: n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-7202256-B2
优先权日:2004-04-14
标题:Proline CCI-779, production of and uses therefor, and two-step enzymatic synthesis of proline CCI-779 and CCI-779
发明人：GU JIANXIN; RUPPEN MARK E; RAVEENDRANATH PANOLIL; CHEW WARREN; SHAW CHIA-CHENG
权利人:WYETH CORP
摘要:Methods for the synthesis of CCI-779 and proline-CCI-779 are described, including a method involving lipase-catalyzed acetylation of 42-hydroxy of rapamycin with a vinyl ester of 2,2-bis(hydroxymethyl) propionic acid in an organic solvent followed by deprotection. Also provided are products containing proline-CCI-779 and uses thereof.