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    • 3. 发明授权
    • Processes for producing 1-benzyl-4-[(5,6-dimethoxy-1indanon)-2-yl]methylpiperidine and hydrochloride
    • 1-苄基-4 - [(5,6-二甲氧基-1茚满酮)-2-基]甲基哌啶和盐酸盐的制备方法
    • US07795438B2
    • 2010-09-14
    • US10580908
    • 2005-04-27
    • Akio ImaiHiroshi Nishimura
    • Akio ImaiHiroshi Nishimura
    • C07D211/32
    • C07D211/32B01J25/02
    • Processes for preparing 1-benzyl-4-[(5,6-dimethoxy-lindanon)-2-yl]methylpiperidine (donepezil), which is useful as an intermediate for medicines, and for producing 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine hydrochloride (donepezil hydrochloride), which is useful as a medicine. The process for donepezil hydrochloride production comprises catalytically hydrogenating the compound represented by the structural formula (III) [1-benzyl-4-[(5,6-dimethoxy-lindanon)-2-ylidene]methylpiperidine] with a Raney nickel catalyst under mild conditions and subsequently treating it with hydrochloric acid. Thus, impurities are further diminished. The operations are simple and the process is suitable for industrial production.
    • 用于制备1-苄基-4 - [(5,6-二甲氧基 - 茚满酮)-2-基]甲基哌啶(多奈哌齐)的方法,其可用作药物的中间体,并用于制备1-苄基-4 - [(5 ,6-二甲氧基-1-茚满酮)-2-基]甲基哌啶盐酸盐(盐酸多奈哌齐),其可用作药物。 盐酸多奈哌齐的方法包括用温和的阮内镍催化剂催化氢化由结构式(III)[1-苄基-4 - [(5,6-二甲氧基 - 茚满酮)-2-亚基]甲基哌啶]代表的化合物 然后用盐酸处理。 因此,杂质进一步减少。 操作简单,适用于工业生产。
    • 9. 发明授权
    • Modified diene polymer rubbers
    • 改性二烯聚合物橡胶
    • US5219938A
    • 1993-06-15
    • US848095
    • 1992-03-09
    • Akio ImaiTomoaki SekiKeisaku Yamamoto
    • Akio ImaiTomoaki SekiKeisaku Yamamoto
    • B60C1/00C08C19/42
    • B60C1/0016C08C19/42
    • A process for preparing modified diene polymer rubbers having an increased impact resilience, a reduced hardness at low temperatures and an improved processability, and useful as rubber materials for automobile tires and other industries which comprises producing a conjugated diene polymer having alkali metal end or ends, and reacting the alkali metal-containing polymer with (a) a silicon or tin compound of the formula: R.sub.a MX.sub.b wherein R is an alkyl group, an alkenyl group, a cycloalkenyl group or an aromatic hydrocarbon atom, a is 0, 1 or 2 and b is 2, 3 or 4, and (b) at least one member selected from the group consisting of a nitro compound; a phosphoryl chloride compound of the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are an alkyl group; an aminosilane compound of the formula (2): ##STR2## wherein R.sup.5, R.sup.6 and R.sup.7 are an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are an alkyl group, and n is an integer; an acrylamide compound of the formula (3): ##STR3## wherein R.sup.10 is hydrogen atom or methyl group, R.sup.11 and R.sup.12 are an alkyl group, and m is an integer; and an aminovinylsilane compound of the formula (4): ##STR4## wherein R.sup.13, R.sup.14, R.sup.15, R.sup.16 and R.sup.17 are an alkyl group.
    • 一种制备具有增加的冲击弹性,在低温下降低的硬度和改善加工性能的改性二烯聚合物橡胶的方法,并且可用作汽车轮胎和其它工业的橡胶材料,其包括制备具有碱金属末端或末端的共轭二烯聚合物, 并使含碱金属的聚合物与(a)下式的硅或锡化合物:其中R是烷基,烯基,环烯基或芳族烃原子,其中R是一个或多个, b是2,3或4,和(b)至少一种选自硝基化合物; 式(1)的磷酰氯化合物:其中R1,R2,R3和R4是烷基; (2)的氨基硅烷化合物:其中R5,R6和R7是烷基或烷氧基,R8和R9是烷基,n是整数; 式(3)的丙烯酰胺化合物:其中R 10是氢原子或甲基,R 11和R 12是烷基,m是整数; 和式(4)的氨基乙烯基硅烷化合物:其中R 13,R 14,R 15,R 16和R 17是烷基。