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    • 1. 发明授权
    • Process for production of radioactive-fluorine-labeled organic compound
    • 放射性氟标记有机化合物的制备方法
    • US08269035B2
    • 2012-09-18
    • US12747726
    • 2008-12-16
    • Fumie KurosakiMasahito ToyamaAkio Hayashi
    • Fumie KurosakiMasahito ToyamaAkio Hayashi
    • C07C69/74
    • C07B59/00C07B59/001C07B2200/05C07C269/06C07C2601/04Y02P20/55C07C271/24
    • A process for production of a radioactive fluorine-labeled organic compound is provided which can improve the yield of radioactive fluorination. Provided is a process in which a compound represented by the following formula (1): (wherein R1 is a straight or branched alkyl chain with 1-10 carbon atoms or an aromatic substituent, R2 is a straight or branched haloalkylsulfonic acid substituent with 1-10 carbon atoms, a straight or branched alkylsulfonic acid substituent with 1-10 carbon atoms, a fluorosulfonic acid substituent or an aromatic sulfonic acid substituent, and R3 is a protective group) is heated under stirring in an inert organic solvent in a presence of a phase transfer catalyst, 18F ions and potassium ions, so as to effect labeling with a radioactive fluorine, wherein the heating temperature is 40-90° C., and the concentration of the phase transfer catalyst in the inert organic solvent is 70 mmol/L or more. Preferably, the molar ratio of the phase transfer catalyst is 0.7 or more relative to the compound of the formula (1), and the concentration of the compound of the formula (1) in the inert organic solvent is 50 mmol/L or more.
    • 提供了可以提高放射性氟化产率的放射性氟标记的有机化合物的制造方法。 本发明提供下述式(1)表示的化合物:其中,R 1为碳原子数为1〜10的直链或支链烷基或芳香族取代基的化合物,R2为直链或支链的卤代烷基磺酸取代基, 10个碳原子,具有1-10个碳原子的直链或支链烷基磺酸取代基,氟磺酸取代基或芳族磺酸取代基,并且R 3是保护基))在搅拌下在惰性有机溶剂中,在 相转移催化剂,18F离子和钾离子,以便用放射性氟进行标记,其中加热温度为40-90℃,相转移催化剂在惰性有机溶剂中的浓度为70mmol / L 或者更多。 相对于式(1)化合物,相转移催化剂的摩尔比优选为0.7以上,惰性有机溶剂中式(1)化合物的浓度为50mmol / L以上。
    • 2. 发明申请
    • METHOD FOR PRODUCTION OF RADIATION DIAGNOSTIC IMAGING AGENT
    • 辐射诊断成像剂的生产方法
    • US20100119448A1
    • 2010-05-13
    • US12526667
    • 2008-02-12
    • Daisaku NakamuraSoichi NakamuraMasahito ToyamaAkio Hayashi
    • Daisaku NakamuraSoichi NakamuraMasahito ToyamaAkio Hayashi
    • A61K51/04
    • C07C229/48A61K9/0019A61K47/26A61K51/0402A61K51/0406C07B59/001C07B63/04C07B2200/05C07C2601/04
    • A method for producing a radioactive diagnostic imaging agent which contains a radioactive halogen-labeled amino acid compound as an effective ingredient and has a composition that can inhibit radiolysis of the effective ingredient, thereby further improving stability, is provided. Disclosed is a method for producing a radioactive diagnostic imaging agent, comprising a solution preparation step of preparing a solution containing a radioactive halogen-labeled amino acid compound, and a dilution step of diluting the solution containing the radioactive fluorine-labeled organic compound in order to adjust radioactive concentration thereof, which further comprises an acid addition step of adding an acid to the solution containing the radioactive fluorine-labeled organic compound, after the solution preparation step and before the dilution step, wherein the acid is added in the acid addition step in an amount sufficient to adjust the pH of the solution resulting from the dilution step to 2.0-5.9, for example, in an amount corresponding to 0.40-2.8 mmol per 1 L of the solution resulting from the dilution step.
    • 提供了含有放射性卤素标记的氨基酸化合物作为有效成分并具有能够抑制有效成分的放射线析出,从而进一步提高稳定性的组成的放射性诊断显像剂的制造方法。 本发明公开了一种放射性诊断显像剂的制造方法,其特征在于,包括:制备含有放射性卤素标记的氨基酸化合物的溶液的溶液制备工序,以及稀释含有放射性氟标记的有机化合物的溶液的稀释步骤, 调整其放射性浓度,其还包括在溶液制备步骤之后和稀释步骤之前在含有放射性氟标记的有机化合物的溶液中加入酸的酸添加步骤,其中在酸添加步骤中加入酸 足以将由稀释步骤得到的溶液的pH调节至2.0-5.9的量,例如,相对于每1L由稀释步骤得到的溶液为0.40-2.8mmol的量。
    • 10. 发明授权
    • Process for production of precursor compound for radioactive halogen-labeled organic compound
    • 用于放射性卤素标记的有机化合物的前体化合物的制备方法
    • US08563771B2
    • 2013-10-22
    • US12448311
    • 2007-12-17
    • Masahito ToyamaAkio Hayashi
    • Masahito ToyamaAkio Hayashi
    • C07C61/04
    • G21H5/02A61K51/0406C07B59/001C07B2200/09C07C303/28C07C303/44C07C2601/04Y02P20/55C07C309/73C07C309/65C07C309/66
    • A process is provided for producing a labeled precursor which is useful for production of a radioactive fluorine-labeled amino acid compound. In the reaction step for introducing a leaving group to a mixture of syn-form and anti-form of FACBC, a base is allowed to present in the reaction system to produce a syn-leaving group adduct, which is unreactive with the base and is highly stable, and an anti-leaving group adduct which can react with the base to form a water-soluble compound. By employing a purification method utilizing such a difference in solubility, the syn-leaving group adduct can be separated selectively. The base may be a linear- or branched-chain primary to tertiary alkylamine having 1 to 10 carbon atoms, a nitrogen-containing heterocyclic compound with 2 to 20 carbon atoms, and a nitrogen-containing hetero aromatic compound with 2 to 20 carbon atoms.
    • 提供了一种制备可用于制备放射性氟标记的氨基酸化合物的标记前体的方法。 在用于将离去基团引入到FACBC的正构形式和抗体形式的混合物的反应步骤中,允许碱在反应体系中存在以产生与碱不反应的合成离去基团加合物,并且是 高度稳定的抗脱离基加合物,其可与碱反应形成水溶性化合物。 通过使用利用这种溶解度差异的纯化方法,可以选择性地分离出合成离去基加成物。 碱可以是具有1-10个碳原子的直链或支链伯 - 叔烷基胺,具有2-20个碳原子的含氮杂环化合物和具有2-20个碳原子的含氮杂芳族化合物。