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    • 21. 发明申请
    • Process for Producing Penam Compound
    • 生产Penam化合物的方法
    • US20090012287A1
    • 2009-01-08
    • US11665006
    • 2005-10-25
    • Isao WadaYoshihisa TokumaruAkihiro Shimabayashi
    • Isao WadaYoshihisa TokumaruAkihiro Shimabayashi
    • C07D499/04
    • C07D499/00
    • An object of the invention is to provide an industrially advantageous process capable of remarkably suppressing the generation of an undesirable by-product cepham compound to thereby efficiently produce a desired 2α-methyl-2β-[(1,2,3-triazol-1-yl)methyl]penam-3α-carboxylic acid ester. In the present invention, a diphenylmethyl 2β-bromomethyl-2α-methylpenam-3α-carboxylate (BMPB) is reacted with 1,2,3-triazole in a halogenated hydrocarbon solvent at −5° C. or lower. The reaction in a halogenated hydrocarbon solvent at −5° C. or less can remarkably suppress the generation of an undesirable by-product cepham compound, so that the desired diphenylmethyl 2α-methyl-2β-[(1,2,3-triazol-1-yl)methyl]penam-3α-carboxylate (TMPB) can be efficiently produced.
    • 本发明的目的是提供一种工业上有利的方法,该方法能够显着地抑制不期望的副产物头孢烯化合物的产生,从而有效地产生所需的2α-甲基-2aeta - [(1,2,3-三唑-1-基) 吡啶-3-基)甲基] penam-3α-羧酸酯。 在本发明中,在-5℃或更低的卤代烃溶剂中使二苯基甲基2ba-溴甲基-2α-甲基青蒿素-3α-羧酸酯(BMPB)与1,2,3-三唑反应。 在-5℃或更低的卤代烃溶剂中的反应可以显着地抑制不合需要的副产物头孢烯化合物的产生,使得所需的二甲基二甲基-2α-甲基-2β-[(1,2,3-三唑-2-基) (TMPB))可以有效地制备。
    • 23. 发明授权
    • Cyclization for preparing halo-cephems
    • 用于制备晕圈的环化
    • US5929233A
    • 1999-07-27
    • US732445
    • 1996-11-06
    • Sigeru ToriiHideo TanakaMichio SasaokaYutaka KameyamaIsao WadaYasuhisa Amano
    • Sigeru ToriiHideo TanakaMichio SasaokaYutaka KameyamaIsao WadaYasuhisa Amano
    • C07D205/09C07D205/095C07D501/00C07D501/08C07D513/04
    • C07D513/04C07D205/09C07D205/095C07D501/00
    • The invention provides a process for preparing an allenyl .beta.-lactam of formula (4), by reacting the hydroxyl group of a .beta.-lactam of formula (1) with a reactive derivative of sulfonic acid of formula (2) to convert the compound of formula (1) to a .beta.-lactam of formula (3), thereafter reacting the resulting .beta.-lactam with a basic anion exchange resin of the type having a tertiary organic base fixed to the resin and isolating the allenyl .beta.-lactam of formula (4) with stability and high purity in a high yield.The invention also provides a process for preparing an allenyl .beta.-lactam of formula (4), by reacting the hydroxyl group of a .beta.-lactam compound of formula (1) with a reactive derivative of sulfonic acid of formula (2) to convert the compound of the formula (1) to a .beta.-lactam compound of formula (3), thereafter reacting the resulting .beta.-lactam of formula (3) with a tertiary organic base to convert the compound (3) to the allenyl .beta.-lactam of formula (4), thereafter causing two kinds of ion exchange resins, i.e., an acidic cation exchange resin and a basic anion exchange resin, to alternately or simultaneously act on the lactam of formula (4) and isolating the allenyl .beta.-lactam of formula (4).Further, the invention provides a process for preparing a 3-halogenated cephem of formula (6), characterized by causing a halogenating reagent to act on an allenyl .beta.-lactam of formula (4) in the presence of a sulfinate ion or thiolate ion capturing agent to obtain the 3-halogenated cephem.
    • PCT No.PCT / JP96 / 00575 Sec。 371日期:1996年11月6日 102(e)日期1996年11月6日PCT 1996年3月8日PCT公布。 公开号WO96 / 29334 日期1996年9月26日本发明提供通过使式(1)的β-内酰胺的羟基与式(2)的磺酸的反应性衍生物反应制备式(4)的烯丙基β-内酰胺的方法, 将式(1)化合物转化成式(3)的β-内酰胺,然后将所得的β-内酰胺与具有叔有机碱类型的碱式阴离子交换树脂反应固定在树脂上并分离丙烯基β 式(4)的内酰胺,其产率稳定,纯度高。 本发明还提供了通过使式(1)的β-内酰胺化合物的羟基与式(2)的磺酸的反应性衍生物反应来制备式(4)的烯丙基β-内酰胺的方法,以将 式(1)的化合物与式(3)的β-内酰胺化合物反应,然后使得到的式(3)的β-内酰胺与叔有机碱反应,将化合物(3)转化为 式(4),然后使两种离子交换树脂,即酸性阳离子交换树脂和碱性阴离子交换树脂交替或同时作用于式(4)的内酰胺,并分离式 (4)。 此外,本发明提供了制备式(6)的3-卤代头孢烯的方法,其特征在于,在亚磺酸根离子或硫醇盐离子捕获的存在下,使卤化试剂作用于式(4)的烯丙基β-内酰胺 代理获得3卤代头孢烯。
    • 29. 发明申请
    • Multilayered stretched hollow material
    • 多层拉伸中空材料
    • US20090269528A1
    • 2009-10-29
    • US12310671
    • 2007-09-04
    • Isao WadaHidekazu Mitsuhashi
    • Isao WadaHidekazu Mitsuhashi
    • B32B27/08
    • B32B27/32B32B27/08B32B27/18B32B27/306B32B27/327B32B2270/00B32B2307/412B32B2307/514B32B2307/7242B32B2439/00B32B2439/70B32B2439/80Y10T428/1352
    • The object of the present invention is to provide a multilayered stretched hollow material having excellent transparency and gas barrier properties. The multilayered stretched hollow material of the present invention is characterized in that it includes surface layers and an intermediate layer wherein the surface layers each contain a propylene polymer composition containing a propylene polymer (the weight thereof being A) and a modified propylene polymer grafted with an unsaturated carboxylic acid or a derivative thereof (the weight thereof being B) in a weight ratio of B/(A+B)≧0.15 and wherein the intermediate layer contains a modified ethylene/vinyl compound copolymer that has a melt flow rate (ASTM D 1238, 210° C., 2.16 kg load) of not less than 8 g/10 min and a crystallization temperature (Tc) of not less than 138° C. and further wherein the multilayered stretched hollow material satisfies C/(A+B+C)≧0.05 wherein C is the weight of the ethylene/vinyl compound copolymer.
    • 本发明的目的是提供具有优异透明性和阻气性的多层拉伸中空材料。 本发明的多层拉伸中空材料的特征在于它包括表面层和中间层,其中表面层各自含有丙烯聚合物组合物,其含有丙烯聚合物(其重量为A)和改性丙烯聚合物,其接枝有 不饱和羧酸或其衍生物(其重量为B)的重量比为B /(A + B)> = 0.15,其中中间层含有具有熔体流动速率的改性乙烯/乙烯基化合物共聚物(ASTM D1238,210℃,2.16kg负荷)不低于8g / 10min,结晶温度(Tc)不低于138℃,其中多层拉伸中空材料满足C /(A + B + C)> = 0.05,其中C是乙烯/乙烯基化合物共聚物的重量。