Ultrasonic imaging apparatus and method of forming an ultrasonic image
of an object
    61.
    发明授权
    Ultrasonic imaging apparatus and method of forming an ultrasonic image of an object 失效
    超声波成像装置和形成物体的超声波图像的方法

    公开(公告)号:US4793184A

    公开(公告)日:1988-12-27

    申请号:US898518

    申请日:1986-08-21

    IPC分类号: G01S7/52 G01S15/89 G01N29/04

    摘要: An ultrasonic imaging apparatus and method of forming an image of an acoustic image of an object employing the aperture synthesis technique, in which at least one partial aperture for accommodating a predetermined number of successive transducers is established and applied to a transducer array to select the predetermined number of successive transducers accommodated in the partial aperture so that the selected transducers serve to transmit ultrasonic acoustic signals to an object and receive signals reflected from the object, and the at least one partial aperture is specifically moved along the arrayed transducers for similar signal transmission to and/or signal reception from the object, whereby the apparatus and the method do not suffer substantial noise caused during changeover between transmitting and receiving operation modes and/or enjoy and enlarged aperture for signal transmission or enlarged aperture for signal reception with a suppressed decrease of the frame rate.

    摘要翻译: 一种使用孔径合成技术形成对象的声像的图像的超声波成像装置和方法,其中建立用于容纳预定数量的连续换能器的至少一个部分孔径并将其应用于换能器阵列以选择预定的 容纳在部分孔径中的连续换能器的数量,使得所选择的换能器用于向对象发射超声波信号并接收从物体反射的信号,并且至少一个部分孔径被特别地沿着阵列换能器移动以用于类似的信号传输 和/或来自对象的信号接收,由此该装置和方法不会在发送和接收操作模式之间切换期间产生实质的噪声和/或用于信号传输的享受和扩大的孔径或用于信号接收的扩大的孔径, 帧速率。

    "> 6
    63.
    发明授权
    6"-Deoxydibekacin, 4",6"-dideoxydibekacin and 1-N-aminoacyl derivatives thereof, and the production of these new compounds 失效
    6“ - 脱氧贝卡辛,4”,6“ - 双脱氧衣壳蛋白及其1-N-氨基酰基衍生物,以及这些新化合物的生产

    公开(公告)号:US4332794A

    公开(公告)日:1982-06-01

    申请号:US174630

    申请日:1980-08-01

    CPC分类号: C07H15/234 Y02P20/55

    摘要: New compounds, 6"-deoxydibekacin, 4", 6"-dideoxydibekacin, 1-N-(L-4-amino-2-hydroxybutyryl)-6"-deoxydibekacin and 1-N-(L-4-amino-2-hydroxybutyryl)-4",6"-dideoxydibekacin are now produced semi-synthetically from dibekacin, i.e. 3',4'-dideoxykanamycin B. These four new compounds are each useful as an antibacterial agent. Production of 6"-deoxydibekacin or 4",6"-dideoxydibekacin is made by removal of the 6"-hydroxyl group or by removal of the 4"- and 6"-hydroxyl groups from an amino-protected and hydroxyl-protected derivative of dibekacin. Production of 1-N-(L-4-amino-2-hydroxybutyryl)-6"-deoxydibekacin or -4",6"-dideoxydibekacin is made by acylating the 1-amino group of 6"-deoxydibekacin or 4",6"-dideoxydibekacin with the L-4-amino-2-hydroxybutyryl group, or alternatively by removal of the 6"-hydroxyl group or the 4"- and 6"-hydroxyl groups from a known compound, 1-N-(L-4-amino-2-hydroxybutyryl)-dibekacin.

    摘要翻译: 新化合物6“ - 脱氧胆碱,4”,6“ - 脱氧倍半萜烯,1-N-(L-4-氨基-2-羟基丁酰基)-6”脱氧胆球蛋白和1-N-(L-4- 氨基-2-羟基丁酰基)-4“,6” - 双脱氧半乳糖素现在由二卡辛(即3',4'-双脱氧卡那霉素B)半合成制备。这四种新化合物各自用作抗菌剂。 通过除去6“ - 羟基或通过从氨基保护基中除去4”和6“ - 羟基而制备6” - 脱氧双蝎子或4“,6” - 双脱氧贝克辛 和二羟脯氨酸的羟基保护衍生物。 1-N-(L-4-氨基-2-羟基丁酰基)-6“ - 脱氧胆球蛋白或-4”,6“ - 脱氧倍半萜烯的制备是通过酰化6” - 脱氧胆碱的1-氨基或 4“,6” - 双脱氧贝克辛与L-4-氨基-2-羟基丁酰基,或者通过从已知的步骤中除去6“ - 羟基或4”和6“ - 羟基 化合物,1-N-(L-4-氨基-2-羟基丁酰基) - 二酮。

    Kanamycin C derivatives
    65.
    发明授权
    Kanamycin C derivatives 失效
    卡那霉素C衍生物

    公开(公告)号:US4140849A

    公开(公告)日:1979-02-20

    申请号:US834753

    申请日:1977-09-19

    IPC分类号: C07H15/236 C07H15/22

    CPC分类号: C07H15/234

    摘要: 1-N-(L-4-amino-2-hydroxybutyryl) derivatives of kanamycin C, 3'-deoxykanamycin C and 3',4'-dideoxykanamycin C have been prepared which possess high antibacterial activity against a wide variety of drug-resistant bacteria. These new derivatives are prepared by reacting L-4-amino-2-hydroxybutyric acid or a functional equivalent thereof with the 1-amino group of kanamycin C, 3'-deoxykanamycin C or 3',4'-dideoxykanamycin C.

    摘要翻译: 已经制备了卡那霉素C,3'-脱氧卡那霉素C和3',4'-二脱氧卡那霉素C的1-N-(L-4-氨基-2-羟基丁酰基)衍生物,其具有针对各种耐药性的高抗菌活性 菌。 这些新的衍生物通过使L-4-氨基-2-羟基丁酸或其功能等同物与卡那霉素C,3'-脱氧卡那霉素C或3',4'-二脱氧卡那霉素C的1-氨基反应制备。

    Method for production of kanamycin C and its derivatives
    66.
    发明授权
    Method for production of kanamycin C and its derivatives 失效
    卡那霉素C及其衍生物的生产方法

    公开(公告)号:US4120955A

    公开(公告)日:1978-10-17

    申请号:US799806

    申请日:1977-05-23

    CPC分类号: C07H15/234 Y02P20/55

    摘要: Kanamycin C, 3'-deoxykanamycin C and 3'4'-dideoxykanamycin C are obtained by a new process comprising treating the primary 6'-amino group of a tetra-N-protected derivative of kanamycin B, 3'-deoxykanamycin B and 3', 4'-dideoxykanamycin B with a nitrite to convert said amino group into hydroxyl group and then removing the protective groups. 3'-Deoxykanamycin C and 3', 4'-dideoxykanamycin C are new semi-synthetic aminoglycosidic antibiotics.

    摘要翻译: 卡那霉素C,3'-脱氧卡那霉素C和3'4'-二脱氧卡那霉素C通过新方法获得,包括处理卡那霉素B,3'-脱氧卡那霉素B和3'-脱氧卡那霉素B的四-N-保护的衍生物的原始6'-氨基 ',4'-双脱氧卡那霉素B与亚硝酸盐反应,将所述氨基转化为羟基,然后除去保护基。 3'-脱氧卡那霉素C和3',4'-二脱氧卡那霉素C是新的半合成氨基糖苷类抗生素。

    1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    67.
    发明授权
    1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin and the production thereof 失效
    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

    公开(公告)号:US4008362A

    公开(公告)日:1977-02-15

    申请号:US390217

    申请日:1973-08-21

    CPC分类号: C07H15/224 C07H15/23

    摘要: 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.

    摘要翻译: 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。

    1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin
and the production thereof
    68.
    发明授权
    1-N-((S)-.alpha.-substituted-.omega.-aminoacyl)-neamine or -ribostamycin and the production thereof 失效
    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

    公开(公告)号:US4008218A

    公开(公告)日:1977-02-15

    申请号:US559771

    申请日:1975-03-19

    CPC分类号: C07H15/224 C07H15/23

    摘要: 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.

    摘要翻译: 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。

    Production of coformycin and intermediates therefor
    69.
    发明授权
    Production of coformycin and intermediates therefor 失效
    共生霉素及其中间体

    公开(公告)号:US3959257A

    公开(公告)日:1976-05-25

    申请号:US518030

    申请日:1974-10-24

    CPC分类号: C07H19/16 C07H19/052

    摘要: This invention relates to a process for the preparation of coformycin, 3-(.beta.-D-ribofuranosyl)-6,7,8-trihydroimidazo[4,5-d][1,3]diazepin-8(R)-ol, through a synthetic route from a new derivative of 9-.beta.-D-ribofuranosyl-purine and other synthetic intermediates involved in the process and their preparation.

    摘要翻译: 本发明涉及一种制备共转霉素3-(β-D-呋喃核糖基)-6,7,8-三氢咪唑并[4,5-d] [1,3]二氮杂-8(R) - 醇的方法, 通过合成路线从9β-D-呋喃核糖基嘌呤和其他合成中间体的新衍生物参与该方法及其制备。