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    • 84. 发明授权
    • 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    • 1-N - ((S) - {60-取代的 - {107-氨基酰基) - 纳米颗粒或 - 瑞波霉素及其制备
    • US4008362A
    • 1977-02-15
    • US390217
    • 1973-08-21
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • A61K31/70A61K31/7028A61K31/7034A61K31/7036A61K31/704A61P31/04C07H15/224C07H15/23C07H15/244
    • C07H15/224C07H15/23
    • An 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR1## wherein R is a hydrogen atom or .beta.-D-ribofuranosyl group of the formula ##STR2## and R.sub.3 is hydroxyl, amino-NH.sub.2 or acylamino group --NHR.sub.4 in which R.sub.4 is an acyl group, and n is a whole number of 1 to 4, may be produced by subjecting the corresponding O-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR3## or its hydroxyl-masked and maino-masked form, to the action of a basic medium to produce an acyl-migration product of the formula: ##STR4## and, optionally converting the amino-masking groups into hydrogen atoms and also the hydroxyl-masking group into hydroge atom in a known manner if said amino-masking groups and said hydroxyl-masking groups are present in the acyl-migration product. The 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin produced is characterized by its useful activity inhibitory to the growth of bacteria resistant to the parent substance neamine or ribostamycin.
    • 式(1)的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或-ribostamycin,其中R为氢原子或式为“IMAGE”的β-D-呋喃核糖基,R3为 是其中R 4为酰基,n为整数1至4的羟基,氨基-NH 2或酰基氨基-NHR 4,其可以通过使相应的O - ((S)-α-取代的ω- 氨基酰基) - 奈米霉素或结晶霉素或其羟基掩蔽和主掩蔽形式,与碱性介质的作用产生下式的酰基迁移产物:和/或将 如果所述氨基掩蔽基团和所述羟基掩蔽基团存在于酰基迁移产物中,则以已知方式将氨基掩蔽基团转化成氢原子,并将羟基掩蔽基团转变成水解原子。 产生的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或 - 生物素 - 特异霉素的特征在于其对母体neamine或核糖霉素具有抗性的细菌的生长有抑制作用。
    • 85. 发明授权
    • 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    • 1-N - ((S) - {60-取代的 - {107-氨基酰基) - 纳米颗粒或 - 瑞波霉素及其制备
    • US4008218A
    • 1977-02-15
    • US559771
    • 1975-03-19
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • Eiichi AkitaTsutomu TsuchiyaShinichi KondoShuntaro YasudaSumio UmezawaHamao Umezawa
    • C07H15/224C07H15/23C07G11/00
    • C07H15/224C07H15/23
    • An 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula: ##STR1## wherein R is a hydrogen atom or .beta.-D-ribofuranosyl group of the formula ##STR2## and R.sub.3 is hydroxyl, amino-NH.sub.2 or acylamino group --NHR.sub.4 in which R.sub.4 is an acyl group, and n is a whole number of 1 to 4, may be produced by subjecting the corresponding O-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin of the formula ##STR3## or its hydroxyl-masked and amino-masked form, to the action of a basic medium to produce an acyl-migration product of the formula: ##STR4## and, optionally converting the amino-masking groups into hydrogen atoms and also the hydroxyl-masking group into hydrogen atom in a known manner if said amino-masking groups and said hydroxyl-masking groups are present in the acyl-migration product. The 1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin produced is characterized by its useful activity inhibitory to the growth of bacteria resistant to the parent substance neamine or ribostamycin.
    • 具有下式的1-N - ((S)-α-取代的ω-氨基酰基) - 微量胺或 - 瑞波霉素:其中R是式“IMAGE”的氢原子或β-D-呋喃核糖基, R 3是羟基,氨基-NH 2或酰基氨基-NHR 4,其中R 4是酰基,n是整数1至4,可以通过使相应的O - ((S)-α-取代的-ω- - 氨基酰基) - 或者其羟基掩蔽和氨基掩蔽形式的微生物胺或β-内啡霉素或碱性培养基,以产生下式的酰基迁移产物: 如果所述氨基掩蔽基团和所述羟基掩蔽基团存在于酰基迁移产物中,则以已知的方式将氨基掩蔽基团转化成氢原子,并将羟基掩蔽基团转变为氢原子。 产生的1-N - ((S)-α-取代的ω-氨基酰基) - 单胺或 - 生物霉素的特征在于其对母体neamine或核糖霉素具有抗性的细菌的生长有抑制作用。
    • 87. 发明授权
    • Universal joint and propeller shaft
    • 万向接头和传动轴
    • US08777759B2
    • 2014-07-15
    • US13552088
    • 2012-07-18
    • Keigo YoshidaHideaki AokiHiromichi KomaiShinichi KondoYoshimichi Takano
    • Keigo YoshidaHideaki AokiHiromichi KomaiShinichi KondoYoshimichi Takano
    • F16D3/41
    • F16D3/41F16N9/00
    • In a universal joint, a cross shaft member includes four shaft parts forming a cross-shape. Each of four bearing cups corresponding respectively to the shaft parts has a hollow-cylindrical shape having a bottom and is rotatably mounted to the corresponding shaft part through a roller disposed between an inner peripheral surface of the each bearing cup and an outer peripheral surface of the corresponding shaft part. Each bearing cup includes an inner bottom surface in sliding contact with a distal end surface of the corresponding shaft part, wherein the sliding contact is in an annular region encompassing a central axis of the corresponding shaft part. The distal end surface of each shaft part is formed with an annular groove encompassing the central axis of the first shaft part for storing oil.
    • 在万向接头中,横轴构件包括形成十字形的四个轴部。 分别与轴部对应的四个轴承杯中的每一个都具有中空圆柱形,具有底部,并且通过设置在每个轴承杯的内周表面和滚子轴承的外周表面之间的辊可旋转地安装到相应的轴部分 相应的轴部分。 每个轴承杯包括与相应轴部分的远端表面滑动接触的内底表面,其中滑动接触处于包围相应轴部分的中心轴线的环形区域中。 每个轴部分的远端表面形成有环形槽,该环形槽围绕第一轴部分的中心轴线,用于储存油。