Facile process for the preparation of high-purity aminopterin
    81.
    发明授权
    Facile process for the preparation of high-purity aminopterin 有权
    制备高纯度氨基蝶呤的简便方法

    公开(公告)号:US07235660B1

    公开(公告)日:2007-06-26

    申请号:US11619102

    申请日:2007-01-02

    申请人: John A. Zebala

    发明人: John A. Zebala

    IPC分类号: C07D475/00 C07D475/08

    CPC分类号: C07D475/08

    摘要: A process for the preparation of aminopterin with a purity greater than 90%, which comprises reacting folic acid, with a silazane in an organic solvent at a temperature from 60 to 180° C., the said solvent being a tertiary amine organic solvent, or, if a catalyst which is acid in nature is present, a basic organic solvent or acetonitrile, and further adding water such that there is about 2.8 to 7.0 mole water for each mole of folic acid.

    摘要翻译: 一种制备纯度大于90%的氨基蝶呤的方法,其包括使叶酸与有机溶剂中的硅氮烷在60至180℃的温度下反应,所述溶剂是叔胺有机溶剂,或 如果存在本质上是酸的催化剂,碱性有机溶剂或乙腈,并进一步加入水,使得每摩尔叶酸具有约2.8-7.0摩尔的水。

    Synthesis of methotrexate-containing heterodimeric molecules
    82.
    发明授权
    Synthesis of methotrexate-containing heterodimeric molecules 失效
    含甲氨蝶呤的异二聚体分子的合成

    公开(公告)号:US07230101B1

    公开(公告)日:2007-06-12

    申请号:US10651340

    申请日:2003-08-28

    IPC分类号: C07D475/00 A01N43/58

    CPC分类号: C07D475/08

    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:

    摘要翻译: 本发明涉及含有甲氨蝶呤的异二聚体探针分子的新型组合物,也称为二聚化学化学诱导剂(CID),可用于三杂交测定。 本发明还涉及所述组合物及其中间体的合成。 本发明的另一方面是使用本文所述的异二聚体探针分子在药物筛选中鉴定给定配体的潜在蛋白质靶标,优化蛋白质 - 配体相互作用或鉴定给定蛋白质靶标的潜在配体的方法。 在某些实施方案中,本发明涵盖了以下含有甲氨喋呤的异二聚体探针的合成:

    Electroluminescence device using liquid crystal compound
    84.
    发明授权
    Electroluminescence device using liquid crystal compound 失效
    电致发光器件采用液晶化合物

    公开(公告)号:US06884477B1

    公开(公告)日:2005-04-26

    申请号:US09722642

    申请日:2000-11-28

    CPC分类号: C09K19/3444 Y10T428/10

    摘要: An electroluminescence device contains a carrier transporting layer comprising a liquid crystal compound represented by R—X—A—B—X′—R′  (I), wherein A and B denote a naphthalene-2,6-diyl skeleton optionally substituted with one or two of F, Cl, Br, CH3 and CF3, at least one of A and B comprising a naphthalene-2,6-diyl skeleton having one to four CH groups replaced with N; X and X′ denote —O—, —S—, —OOC— or —COO—; and one of R and R′ denotes H, F, Cl, Br, CF3 or a linear or branched alkyl group having 1-20 carbon atoms, and the other one of R and R′ denotes a linear or branched alkyl group having 3-20 carbon atoms, said alkyl groups being independently capable of including one methylene group which can be replaced with —O—, —S—, —CH═CH— or —C≡C— so long as heteroatoms are not adjacent to each other.

    摘要翻译: 电致发光器件包含载流子传输层,其包含由<?in-line-formula description =“In-Line Formulas”end =“lead”?> RXAB-X'-R'(I)表示的液晶化合物, 其中A和B表示任选被F,Cl,Br,CH 3&gt;和CF 3 3中的至少一个,包含具有1-4个CH基的萘-2,6-二基骨架中的至少一个被N取代; X和X'表示-O - , - S - , - OOC-或-COO-; R和R'中的一个表示H,F,Cl,Br,CF 3或具有1-20个碳原子的直链或支链烷基,R和R'中的另一个表示 具有3-20个碳原子的直链或支链烷基,所述烷基独立地能够包括可被-O - , - S - , - CH-或-C≡C-取代的一个亚甲基,只要 杂原子彼此不相邻。

    Process for the preparation of 3-aryl-benzofuran-2-ones
    85.
    发明申请
    Process for the preparation of 3-aryl-benzofuran-2-ones 有权
    3-芳基 - 苯并呋喃-2-酮的制备方法

    公开(公告)号:US20020115855A1

    公开(公告)日:2002-08-22

    申请号:US09899450

    申请日:2001-07-05

    摘要: The instant invention discloses a process for the preparation of compounds of formula I 1 wherein the general symbols are as defined in claim 1, which process comprises hydrolyzing a compound of formula V 2 wherein the general symbols are as defined in claim 1, in an aqueous solvent in the presence of an acid. The compounds of the formula V are new and useful as stabilizers for protecting organic materials, in particular polymers and lubricants, against oxidative, thermal or light-induced degradation.

    摘要翻译: 本发明公开了一种制备式I化合物的方法,其中通式为如权利要求1所定义,该方法包括水解式V的化合物,其中通式如权利要求1所定义,在水溶剂中 酸的存在。 式V的化合物是新的并且可用作保护有机材料,特别是聚合物和润滑剂以防止氧化,热或光诱导的降解的稳定剂。