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    • 3. 发明授权
    • Process for preparing carbapenem derivatives
    • 碳青霉烯衍生物的制备方法
    • US5359059A
    • 1994-10-25
    • US100460
    • 1993-08-02
    • Tameo IwasakiKazuhiko KondoHiroshi Horikawa
    • Tameo IwasakiKazuhiko KondoHiroshi Horikawa
    • C07D477/00C07D477/04C07D487/04C07D499/00
    • C07D477/04
    • Process for preparing carbapenem derivative of the formula [I], which comprises subjecting azetidinone compound of the formula [II] to intramolecular cyclization reaction together with elimination reaction of the group of --SR.sup.4, followed by re-adding said group of --SR.sup.4 to the 2-position of the carbapenem skeleton of the intramolecularly cyclized compound, which is industrially useful as process for preparing carbapenem antimicrobials or synthetic intermediate therefor. ##STR1## wherein R.sup.1 is protected or unprotected hydroxy-substituted lower alkyl group, R.sup.2 is hydrogen atom or ester residue, R.sup.3 is hydrogen atom or lower alkyl group, and the group of --SR.sup.4 is group which can be used as substituent at 2-position of the carbapenem antimicrobials.
    • 制备式[I]的碳青霉烯衍生物的方法,其包括将式[II]的氮杂环丁酮化合物与-SR 4基团的消除反应一起分子内环化反应,然后将所述-SR 4基团重新加入到 分子内环化化合物的碳青霉烯骨架的2-位,其在工业上可用作制备碳青霉烯类抗微生物剂或其合成中间体的方法。 其中R 1为被保护或未被保护的羟基取代的低级烷基,R 2为氢原子或酯残基,R 3为氢原子或低级烷基,-SR 4为基团 其可用作碳青霉烯类抗微生物剂的2-位上的取代基。
    • 8. 发明申请
    • High strength aluminum alloy casting and method of production of same
    • 高强度铝合金铸造及其生产方法相同
    • US20100192888A1
    • 2010-08-05
    • US12798288
    • 2010-04-01
    • Kouji YamadaTomoyuki HatanoSusumu MiyakawaHiromi TakagiHiroshi HorikawaAkio Hashimoto
    • Kouji YamadaTomoyuki HatanoSusumu MiyakawaHiromi TakagiHiroshi HorikawaAkio Hashimoto
    • C22C21/04F04C18/02F01L1/34F16D65/00
    • C22C21/04C22F1/043
    • A high strength aluminum alloy casting obtained by casting an aluminum alloy comprised of 7.5 to 11.5 wt % of Si, 3.8 to 4.8 wt % of Cu, 0.45 to 0.65 wt % of Mg, 0.4 to 0.7 wt % of Fe, 0.35 to 0.45 wt % of Mn, and the balance of Al and not more than 0.2 wt % of unavoidable impurities, wherein this aluminum alloy has 0.1 to 0.3 wt % of Ag added to it or contains 0.1 to 1.0 wt % of at least one element selected from the group of second additive elements comprised of Rb, K, Ba, Sr, Zr, Nb, Ta, V, and Pd and rare earth elements, and a method of production of a high strength aluminum alloy casting comprising the steps of filling a melt of an aluminum alloy in a mold to obtain a casting, taking out the aluminum alloy casting from the mold, solubilizing the high strength aluminum alloy casting by heating in a temperature range of 495 to 505° C. for 2 to 6 hours, quenching the high strength aluminum alloy casting after the solubilization, and age hardening the high strength aluminum alloy casting by heating in a temperature range of 160 to 220° C. for 2 to 6 hours after quenching.
    • 通过铸造由7.5〜11.5重量%的Si,3.8〜4.8重量%的Cu,0.45〜0.65重量%的Mg,0.4〜0.7重量%的Fe,0.35〜0.45重量%的铝构成的高强度铝合金铸件 的Mn,余量为Al和不大于0.2重量%的不可避免的杂质,其中该铝合金添加0.1至0.3重量%的Ag或含有0.1至1.0重量%的至少一种选自 由Rb,K,Ba,Sr,Zr,Nb,Ta,V和Pd以及稀土元素组成的第二添加元素组,以及制造高强度铝合金铸造的方法,包括以下步骤: 在模具中获得铝合金以获得铸件,从模具中取出铝合金铸件,通过在495至505℃的温度范围内加热将高强度铝合金铸件溶解2至6小时,淬火高 强度铝合金铸造后溶解,并且老化硬化高强度铝合金cas 在160-220℃的温度范围内加热淬火2至6小时。