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    • 75. 发明申请
    • Characterizing Thermomechanical Properties of an Organic Substrate Using Finite Element Analysis
    • 使用有限元分析表征有机基板的热机械性能
    • US20090310848A1
    • 2009-12-17
    • US12260693
    • 2008-10-29
    • Hien Phu DangArun SharmaSri M. Sri-Jayantha
    • Hien Phu DangArun SharmaSri M. Sri-Jayantha
    • G06K9/00
    • G06F17/5018G06F2217/80
    • A method for characterizing thermomechanical properties of an organic substrate is provided. The method includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the plurality of circuit layers of the substrate; selecting a given one of the plurality of circuit layers for processing; converting the image to a two-dimensional finite element model (FEM) image of the given one of the circuit layers; determining at least one of a coefficient of thermal expansion (CTE), modulus and Poisson's ratio of the FEM image of the given one of the circuit layers; repeating the steps of selecting a given one of the plurality of circuit layers, converting the image to a two-dimensional FEM image, and determining at least one of a CTE, modulus and Poisson's ratio of the FEM image for all of the plurality of circuit layers corresponding to at least a portion of the organic substrate; and constructing a three-dimensional representation of at least a portion of the organic substrate including the plurality of circuit layers as a function of at least one of the CTE, modulus and Poisson's ratio of each of the plurality of circuit layers.
    • 提供了表征有机基板的热机械性能的方法。 该方法包括以下步骤:接收有机衬底的图像,该图像包括衬底的多个电路层的几何描述; 选择所述多个电路层中的给定一个以进行处理; 将图像转换成给定的一个电路层的二维有限元模型(FEM)图像; 确定给定一个电路层的FEM图像的热膨胀系数(CTE),模数和泊松比中的至少一个; 重复选择多个电路层中的给定的一个电路层的步骤,将图像转换为二维有机图像,以及确定所有多个电路中的有限元图像的CTE,模数和泊松比中的至少一个 对应于有机基材的至少一部分的层; 以及构成包括所述多个电路层的所述有机衬底的至少一部分的三维表示作为所述多个电路层中的每一个的CTE,模数和泊松比中的至少一个的函数。
    • 80. 发明申请
    • Method of preparation of anticancer taxanes using 3-[(substituted-2-trialkylsilyl)ethoxycarbon1]-5-oxazolidine carboxylic acids
    • 使用3 - [(取代-2-三烷基甲硅烷基)乙氧基羰基] -5-恶唑烷羧酸制备抗癌紫杉烷的方法
    • US20080064887A1
    • 2008-03-13
    • US11812180
    • 2007-06-15
    • Arun SharmaSubrata SarkarJyan Mahanty
    • Arun SharmaSubrata SarkarJyan Mahanty
    • C07D305/04
    • C07D263/04C07D305/14C07D413/12
    • This invention relates to a process for preparation of taxanes comprising subjecting 7,10-diprotected intermediates 7-O-(2-haloacyl)baccatin III 6c or 7,10-O-di-(2-haloacyl)-10-deacetylbaccatin III 6b to a step of coupling with (4S,5R)-3-[(2-alkyl/aryl-2-trialkylsilyl)ethoxy-carbonyl]-4-aryl-2-substituted-1,3-oxazolidine-5-carboxylic acid 1 in the presence of a condensation agent, an activating agent and an aromatic hydrocarbon to obtain 7-O-[2-(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3(2-unsubstituted/substituted-2-trialkylsilyl)-ethoxycarbonyl-1,3-oxazolidinyl-5-carbonyl]baccatin III 7a or 7,10-di-O [2-(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3-(2-unsubstituted/substituted-2-trialkylsilyl)ethoxy-carbonyl-1, 3-oxazolidinyl-5-carbonyl]-10-deacetylbaccatin III 7b; treating the coupled products 7-O-[2-(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3-(2-substituted-2-trialkylsilyl)ethoxy-carbonyl-1, 3-oxazolidinyl-5-carbonyl]baccatin III 7a or 7,10-di-O-[2[(haloacyl)]-13-[(4S,5R)-4-aryl-2-substituted-3-(2-substituted-2-trialkylsilyl)ethoxycarbonyl-1, 3-oxazolidinyl-5-carbonyl-10-deacetylbaccatin III 7b with tetraalkylammonium halide in a haloalkane to obtain free amine of structure 8; treating free amine 8 with acid chloride or acid anhydride in the presence of a base in a heterogeneous phase to obtain the intermediates of structure 9; subjecting the intermediates of compound 9 to the deprotection of 2-haloacyl group under mild alkaline condition at −20 to +40° C. for 6-24 h in the presence of ammonia or aliphatic amines or aromatic amines or their combination to obtain paclitaxel or docetaxel.
    • 本发明涉及一种制备紫杉烷的方法,包括将7,10-双保护的中间体7-O-(2-卤代酰基)浆果赤霉素III 6c或7,10-O-二(2-卤代酰基)-10-脱乙酰基浆果赤霉素III 6b (4S,5R)-3 - [(2-烷基/芳基-2-三烷基甲硅烷基)乙氧基 - 羰基] -4-芳基-2-取代-1,3-唑烷-5-羧酸1 在缩合剂,活化剂和芳烃存在下,得到7-O- [2-(卤代酰基)] - 13 - [(4S,5R)-4-芳基-2-取代-3(2- 未取代的/取代的2-三烷基甲硅烷基) - 乙氧基羰基-1,3-恶唑烷基-5-羰基]浆果赤霉素III 7a或7,10-二-O- [2-(卤代酰基)] - 13 - [(4S,5R)-4 (2-未取代的/取代的2-三烷基甲硅烷基)乙氧基羰基-1,3-恶唑烷基-5-羰基] -10-脱乙酰基浆果赤霉素III 7b; 处理偶联产物7-O- [2-(卤代酰基)] - 13 - [(4S,5R)-4-芳基-2-取代-3-(2-取代-2-三烷基甲硅烷基)乙氧羰基-1 3-恶唑烷基-5-羰基]浆果赤霉素III 7a或7,10-二-O- [2 [(卤代酰基)] - 13 - [(4S,5R)-4-芳基-2-取代-3- 取代的2-三烷基甲硅烷基)乙氧基羰基-1,3-恶唑烷基-5-羰基-10-脱乙酰基浆果赤霉素III 7b与四烷基卤化铵在卤代烷烃中反应,得到结构8的游离胺; 在碱存在下用酰氯或酸酐处理游离胺8,得到结构9的中间体; 使化合物9的中间体在温和碱性条件下在-20至+ 40℃下在氨或脂族胺或芳族胺或其组合的存在下将2-卤代酰基脱保护6-24小时,得到紫杉醇或 多西紫杉醇