CAS: 32001-55-1; Pyridine Hydrofluoride

上下游产品

pyridine hydrogen fluoridedimethyl 4-fluoro-5-methylphthalate 2,3-difluoro-1-(4-(trans-4-propylcyclohexyl)-(2,3-difluorophenyloxy)difluoromethyl)-4-ethoxybenzene 7-fluoro-3,4-dihydronaphthalen-1(2H)-one hexanoic acid

吡啶置于氢氟酸体系中,化学反应生成氟化氢吡啶
参考文献:If5-pyridine-hf: Air-And Moisture-Stable Fluorination Reagent
标题:If5-pyridine-hf: Air-And Moisture-Stable Fluorination Reagent
摘要:If5-Pyridine-Hf,An Air-And Moisture-Stable Solid,Can Be Used As A Fluorination Reagent For The Introduction Of Fluorine Atoms To The Alpha-Position Of The Sulfur Atom In Sulfides. The Desulfurizing-Fluorination Reactions Of Benzylic Sulfides,Thioacetals,And 2-(Methylthio)-1,3-Dithiane Derivatives Were Also Performed Using This Reagent. (C) 2012 Elsevier Ltd. All Rights Reserved.
Doi:10.1016/j.Tet.2012.09.104

专利信息

专利号:WO-2010103857-A1
优先权日:2009-03-12
标 题 :Method for solid-phase synthesis of glycopeptide using silicon-containing protecting group and synthesis device
发明人：NISHIMURA SHIN-ICHIRO; SHIMAWAKI KEN
权利人:UNIV HOKKAIDO NAT UNIV CORP; NISHIMURA SHIN-ICHIRO; SHIMAWAKI KEN
摘要:Disclosed are a novel method for the synthesis of a glycopeptide by which glycopeptides of various types can be deprotected and excised from a resin, each under weakly acidic to weakly basic conditions, without causing the problems of the epimerization of an amino acid at the a-position and the ß-elimination of a sugar residue; a synthesis device therefor; and a synthesis intermediate to be used in synthesizing a glycopeptide. Specifically disclosed are a method for the solid-phase synthesis of a glycopeptide which comprises a step for obtaining a glycopeptide derivative wherein the N-terminus is protected, the C-terminus is immobilized to a solid phase via a silicon linker, and a reactive group carried by a sugar residue and a reactive group carried by an amino acid side chain constituting a peptide are protected by silicon-containing groups, and a step for obtaining the glycopeptide by deprotecting said glycopeptide derivative and releasing the same from the solid phase by treating the glycopeptide derivative with an agent for removing the silicon-containing groups and the silicon linker; a synthesis intermediate to be used in the step for obtaining the glycopeptide derivative in the aforesaid method; and a device for the solid-phase synthesis of a glycopeptide.

专利号:US-2024294462-A1
优先权日:2023-02-15
标题:Method for the Synthesis of Ionizable Lipids Using a Doubly Alkylated Intermediate
发明人：SAADATI FARIBA; TRAN HUY; CIUFOLINI MARCO; ATMURI N D PRASAD
权利人:NANOVATION THERAPEUTICS INC
摘要:Provided herein is a method for the preparation of ionizable, cationic amino lipids using a doubly alkylated nucleophilic intermediate to produce a ketone. The ketone, or a corresponding alcohol, is subjected to one or more synthesis steps to add an ionizable moiety thereto. The method can be advantageously employed for the synthesis of unsymmetrical analogues of the above lipids that would be considerably more difficult to make by alternative strategies. The method can also be used to prepare symmetrical ionizable, cationic amino lipids with fewer steps and/or with the use of fewer hazardous chemicals than known synthesis methods.

专利号:US-11548898-B2
优先权日:2017-07-06
标题 :Synthesis of halichondrins
发明人：KISHI YOSHITO; AI YANRAN; YE NING; WANG QIAOYI; YAHATA KENZO; ISO Kentaro; NAINI SANTHOSH REDDY; YAMASHITA SHUJI; LEE JIHOON; OHASHI ISAO; FUKUYAMA TAKASHI
权利人:HARVARD COLLEGE; EISAI R&D MAN CO LTD
摘要:The present invention provides methods for the synthesis of ketones involving a Ni/Zr-mediated coupling reaction. The Ni/Zr-mediated ketolization reactions can be used in the synthesis of halichondrins (e.g., halichondrin A, B, C; homohalichondrin A, B, C; norhalichondrin A, B, C), and analogs thereof. Therefore, the present invention also provides synthetic methods useful for the synthesis of halichondrins, and analogs thereof. Also provided herein are compounds (i.e., intermediates) useful in the synthesis of halichondrins, and analogs thereof. In particular, the present invention provides methods and compounds useful in the synthesis of compound of Formula (H3-A).

专利号:US-8138330-B2
优先权日:2006-09-11
标 题 :Process for the synthesis of oligonucleotides
发明人：LEUCK MICHAEL; WOLTER ANDREAS; STUMPE ALFRED
权利人:LEUCK MICHAEL; WOLTER ANDREAS; STUMPE ALFRED; SIGMA ALDRICH CO LLC
摘要:The present invention discloses novel methods for the synthesis of oligonucleotides with nucleoside phosphoramidites on solid supports. The methods comprise the stepwise chain assembly of oligonucleotides on supports with 5′-acyl phosphoramidites. The synthesis cycles consist of a front end deprotection step which is conducted with a solution of a primary amine or a phenolate, a phosphoramidite coupling step with a 5′-acyl nucleoside phosphoramidite in the presence of an activator, a phosphite oxidation step and an optional capping step. The novel methods improve the quality of synthetic oligonucleotides due to the irreversibility of the front end deprotection step, which prevents the formation of deletion sequences, and due to the avoidance of acidic reagents in the synthesis cycles, which prevent the formation of depurination side products. The invention further discloses novel nucleoside phosphoramidite compositions wherein the phosphoramidites carry acyl front end protective groups which are cleavable with primary amines or phenolates. The invention is applicable to the synthesis of oligodeoxyribonucleotides, oligoribonucleotides and oligonucleotides with modifications in their sugar or phosphate groups.

专利号:WO-2022256490-A9
优先权日:2021-06-03
标题:Improved synthesis of phosphoramidates for the treatment of hepatitis b virus
发明人：LOCKWOOD MARK
权利人:ANTIOS THERAPEUTICS INC
摘要:The synthesis of phosphoramidate prodrugs useful in the treatment of viral infections is disclosed. Specifically, an improved synthesis of phosphoramidate nucleotides useful in the treatment of Hepatitis B virus is disclosed.

专利号:US-7241399-B2
优先权日:2000-09-08
标题 :Synthesis of nanoparticles
发明人：HAUBOLD STEPHAN; HAASE MARKUS; RIWOTZKI KARSTEN; WELLER HORST; MEYSSAMY HEIKE; IBARRA FERNANDO
权利人:CT ANGEWANDTE NANOTECH CAN
摘要:Methods for the preparation of inorganic nanoparticles capable of fluorescence, wherein the nanoparticles consist of a host material that comprises at least one dopant. The synthesis of the invention in organic solvents allows to gain a considerably higher yield compared to the prior art synthesis in water. All kinds of objects can advantageously be marked and reliably authenticated by using an automated method on the basis of a characteristic emission. Further, the size distribution of the prepared nanoparticles is nartower which renders a subsequent size-selected separation process superfluous.