会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Hydroxylamine bearing amino acid derivatives as collagenase inhibitors
    • 具有氨基酸衍生物的羟胺作为胶原酶抑制剂
    • US4996358A
    • 1991-02-26
    • US336264
    • 1989-04-11
    • Balraj K. HandaWilliam H. JohnsonPeter J. Machin
    • Balraj K. HandaWilliam H. JohnsonPeter J. Machin
    • C12N9/99A61K31/16A61K31/165A61K31/195A61K31/22A61K31/395A61K38/00A61P29/00A61P43/00C07C67/00C07C231/00C07C237/06C07C237/08C07C237/12C07C237/22C07C259/06C07C313/00C07C323/60C07D207/40C07D225/02C07K1/02C07K5/06C07K5/065C07K5/068
    • C07K5/06086C07K5/06026C07K5/06043C07K5/06052C07K5/06078A61K38/00
    • Compounds of the formula ##STR1## wherein A is a group of the formula HN(OH)--CO-- or HCO--N(OH)--; R.sup.1 is a C.sub.2 -C.sub.5 -alkyl; R.sup.2 is the characterizing group of a natural .alpha.-amino acid in which any functional group present may be protected, any amino group present may be acylated and any carboxyl group present may be amidated, with the proviso that R.sup.2 is not hydrogen or methyl; R.sup.3 is hydrogen, amino, hydroxy, mercapto, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.6 -alkylamino, C.sub.1 -C.sub.6 -alkylthio or aryl-(C.sub.1 -C.sub.6 -alkyl), or amino-(C.sub.1 -C.sub.6 -alkyl), hydroxy-(C.sub.1 -C.sub.6 -alkyl), mercapto-(C.sub.1 -C.sub.6 -alkyl) or carboxy-(C.sub.1 -C.sub.6 -alkyl) in which the amino, hydroxy, mercapto or carboxyl group may be protected, the amino group may be acylated or the carboxyl group may be amidated; R.sup.4 is hydrogen or methyl; R.sup.5 is hydrogen or a C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.6 -alkyl, di(C.sub.1 -C.sub.6 -alkoxy)-methylene, carboxyl, (C.sub.1 -C.sub.6 -alkyl)-carbonyl, (C.sub.1 -C.sub.6 -alkoxy)carbonyl, arylmethoxycarbonyl, (C.sub.1 -C.sub.6 -alkyl)aminocarbonyl or arylaminocarbonyl; and R.sup.6 is hydrogen or methyl; or R.sup.2 and R.sup.4 taken together are a group of the formula --(CH.sub.2).sub.n -- in which n is a number from 4 to 11; or R.sup.4 and R.sup.6 taken together are a trimethylene; and pharmaceutically acceptable salts of those compounds which are acidic or basic are described. The compounds of formula I possess collagenase inhibitory activity and can be used in the control or prevention of degenerative joint diseases.
    • 式(Ⅰ)化合物其中A为式HN(OH)-CO-或HCO-N(OH) - 的基团; R1是C2-C5-烷基; R2是天然α-氨基酸的表征基团,其中存在的任何官能团可以被保护,任何存在的氨基可以被酰化,并且存在的任何羧基可以被酰胺化,条件是R 2不是氢或甲基; R3是氢,氨基,羟基,巯基,C1-C6-烷基,C1-C4-烷氧基,C1-C6-烷基氨基,C1-C6-烷硫基或芳基 - (C1-C6-烷基)或氨基 - (C1- C6烷基),羟基 - (C1-C6-烷基),巯基 - (C1-C6-烷基)或羧基 - (C1-C6-烷基),其中氨基,羟基,巯基或羧基可被保护 氨基可以被酰化或羧基可以酰胺化; R4是氢或甲基; R 5是氢或C 1 -C 6烷基,C 1 -C 6烷氧基-C 1 -C 6烷基,二(C 1 -C 6 - 烷氧基) - 亚甲基,羧基,(C 1 -C 6 - 烷基) - 羰基,(C 1 -C 6 - 烷氧基)羰基,芳基甲氧基羰基,(C 1 -C 6 - 烷基)氨基羰基或芳基氨基羰基; R6为氢或甲基; 或者R 2和R 4一起是式 - (CH 2)n - 的基团,其中n是4至11的数; 或R4和R6一起是三亚甲基; 和描述了那些酸性或碱性化合物的药学上可接受的盐。 式I化合物具有胶原酶抑制活性,可用于控制或预防退行性关节疾病。
    • 8. 发明授权
    • Differential torque motor
    • 差速马达
    • US5475277A
    • 1995-12-12
    • US95688
    • 1993-07-21
    • William H. Johnson
    • William H. Johnson
    • H02K21/14H02K29/00H02P6/08H02K21/12
    • H02P6/08H02K21/14H02K29/03
    • A PM (permanent magnet) motor is described, that uses electromagnetic current to release or pull a PM, which has increased starting torque and a large power output in a small volume. The motor includes phase units (60, FIG. 3 ) each having three electromagnets (46A-46C) and each having two PMs (44A, 44B) of Nd-B-Fe permanent magnet material. At a start position, a PM (44B) of each phase unit is centered between the cores (50B, 50C) of two electromagnets, and there is slight overlap (90, FIG. 6 ) of each of the two core faces (64B, 64C) with the PM face (62A). Each PM face has a longer circumferential length (D) than that (G) of each core face. Each PM face and each core face, has an axial length (E, FIG. 1 ) which is much larger than its circumferential length (D, G). The interface end of each electromagnet coil lies a small distance (K) from the core face.
    • 描述了使用电磁电流来释放或拉动PM的PM(永磁体)电动机,其具有增加的起动转矩和大体积的大功率输出。 电动机包括各自具有三个电磁体(46A-46C)并且各自具有Nd-B-Fe永磁材料的两个PM(44A,44B)的相位单元(60)。 在起始位置,每个相位单元的PM(44B)在两个电磁体的芯(50B,50C)之间居中,并且两个芯面(64B,...)中的每一个的轻微重叠(90,图6) 64C)与PM面(62A)。 每个PM面具有比每个芯面的(G)更长的圆周长度(D)。 每个PM面和每个芯面具有比其圆周长度(D,G)大得多的轴向长度(E,图1)。 每个电磁线圈的接口端与芯面相距较小(K)。