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| Number | Title | Issue Date |
| 8148504 | Aminoglycoside antibiotics This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the ... | 04/03/2012 |
| 7439343 | Aminoglycoside-polyamine displacers and methods of use in displacement chromatography Aminoglycoside-polyamines are disclosed along with methods of use thereof in displacement chromatography and as DNA-binding ligands. The aminoglycoside-polyamines are derivatives of carbohydrates, such as sugars, amino sugars, deoxysugars, glycosides, nucleosides an... | 10/21/2008 |
| 6288028 | BPC peptide salts with organo-protective activity, the process for their preparation and their use in therapy The present invention discloses new pharmaceutical compositions useful for the treatment of various human and animal diseases. These pharmaceutical compositions contain one or more peptides.... | 09/11/2001 |
| 6077822 | Drug salts It has been found that sugar acid salts represent beneficial controlled release forms for basic organic drug compounds. Examples of appropriate salts include mono, di, oligo and polysaccharide poly-O-sulphonic acid salts of antibiotics such as tetracyclin... | 06/20/2000 |
| 5763587 | Process for the synthesis of amikacin In the synthesis of amikacin, having the formula: ##STR1## by acylation of a diprotected derivative of kanamycin A with a reactive derivative of L-(-)-4-amino-2-hydroxybutyric acid, the selection of the reaction solvent and of the pH conditions permi... | 06/09/1998 |
| 5686588 | Amine acid salt compounds and process for the production thereof A stoichiometric acid moiety transfer reaction for the preparation of an acid salt of an amine compound is disclosed. The acid moiety transfer reaction provides amine acid salts of high purity and having crystalline structure of uniform size and shape.... | 11/11/1997 |
| 5656735 | Process for the preparation of amikacin precursors Process for the preparation of a 3,6'-di-N-Acyl-1-[L-(-)-4-Acylamino-2-hydroxybutyryl] kanamycin A, wherein Acyl is a N-protecting acylating group, which comprises reacting kanamycin A with an aluminum salt in an inert organic solvent, treating the alumin... | 08/12/1997 |
| 5621085 | Process for the preparation of amikacin precursors Process for the preparation of a 3,6'-di-N-Acyl-1-[L-(-)-4-Acylamino-2-hydroxybutyryl] kanamycin A, wherein Acyl is a N-protecting acylating group, which comprises reacting kanamycin A with an aluminum salt in an inert organic solvent, treating the alumin... | 04/15/1997 |
| 5618795 | Dibekacin derivatives and arbekacin derivatives active against resistant bacteria, and the production thereof As new dibekacin derivatives and new arbekacin derivatives are now provided 2"-amino-2"-deoxydibekacin, 2"-amino-5,2"-dideoxydibekacin, 2"-amino-2"-deoxyarbekacin, 2"-amino-5,2"-dideoxyarbekacin, 2"-amino-5,2"-dideoxy-5-epi-fluoroarbekacin and 2"-ami... | 04/08/1997 |
| 5595977 | Salts of amino glycosides The present invention relates to novel amino glycoside salts of sucrose-octa-O-sulfonic acid of formula I: ([sucrose-octa-O-sulfonic acid8- ]-[R-(NH3+)x ]y -Mzn+) ... | 01/21/1997 |
| 5527781 | 4-O-(aminoglycosyl)- or 4,6-di-O-(aminoglycosyl)-2,5-dideoxy-5,5-difluorostreptamine derivatives As new compounds are now synthetized 5-deoxy-5,5-difluoro derivatives of aminoglycosidic antibiotics of neamine, kanamycin A-series, kanamycin B-series, gentamicin-series and seldomycin-series. Further, the 1-N-(-hydroxy-ω-aminoalkanoyl) derivativ... | 06/18/1996 |
| 5488038 | Dibekacin derivatives and arbekacin derivatives active against resistant bacteria As new dibekacin derivatives and new arbekacin derivatives are now provided 2"-amino-2"-deoxydibekacin, 2"-amino-5,2"-dideoxydibekacin, 2"-amino-2"-deoxyarbekacin, 2"-amino-5,2"-dideoxyarbekacin, 2"-amino-5,2"-dideoxy-5-epi-fluoroarbekacin and 2"-ami... | 01/30/1996 |
| 5122601 | Synthesis of 2,3,3',4,4'-penta-o-methylsucrose A process for manipulating any polyhydroxy compound bearing two or more primary and secondary hydroxyl groups to expose only the primary hydroxyl groups, while blocking all interfering secondary hydroxyl groups as their methyl or other alkyl ethers. More ... | 06/16/1992 |
| 4985549 | Process for preparing amikacin Described is a process for preparing Amikacin wherein 1-N-(L(-)γ-benzyloxycarbonylamino--hyroxybutyryl)-3,6'-di-N-b enzyloxycarbonyl-Kanamycin A suspended in a suitable solvent, is treated with an aqueous solution of formic acid in the presence of ... | 01/15/1991 |
| 4937257 | Flavanone derivatives New flavanone derivatives of the formula I ##STR1## wherein Ar1 and Ar2 are each phenyl which is unsubstituted or monosubstituted to trisubstituted by OH, alkyl, alkoxy, acylamino, halogen, COOalkyl and/or NO2 and/or ... | 06/26/1990 |
| 4902790 | Novel process for the synthesis of amikacin A novel process for the synthesis of amikacin starting from kanamycin A protected at the positions 3 and 6' is described comprising the reaction of kanamycin A with a salt of a bivalent metal cation selected from zinc, nickel, iron, cobalt, manganese, cop... | 02/20/1990 |
| 4877775 | Polymeric aminosaccharides as antihypercholesterolemic agents Crosslinked copolymers of monomeric aminosaccharides such as aminoglycosidic antibiotics, e.g. neomycin, or of polymeric aminosaccharides, e.g., chitosan, with dialdehydes are useful antihypercholesterolemic agents due to their ability to bind with bile ... | 10/31/1989 |
| 4873225 | 1-n-(4-amino-3-fluoro-2-hydroxybutyryl)-kanamycins As new compound are now provided ten compounds, namely 1-N-{(2R,3R)-4-amino-3-fluoro-2-hydroxybutyryl}kanamycin A; 1-N-{(2R,3R)-4-amino-3-fluoro-2-hydroxybutyryl}-2',3'-dideoxykanamycin A; 1-N-{(2R,3R)-4-amino-3-fluoro-2-hydroxybutyryl}-2',3'-dideoxy-2'-f... | 10/10/1989 |
| 4855287 | Aminoglycoside compounds, processes for production thereof, and pharamaceutical composition containing the same An aminoglycoside compound represented by the following formula (I) ##STR1## wherein one of R1 and R2 represents a hydrogen atom, and the other represents a methyl group, R3 represents a hydrogen atom or a hydroxyl group, ... | 08/08/1989 |
| 4845082 | 3'4'-dideoxy-3'-fluorokanamycin B and production thereof New compound, 3',4'-dideoxy-3'-fluorokanamycin B is now provided, which is useful as antibacterial agent. 3',4'-Dideoxy-3'-fluorokanamycin B is prepared by a process comprising halogenating an N,O-protected derivative of 3'-deoxy-3'-fluoro-4'-O-sulfonylka... | 07/04/1989 |
| 4661474 | 2',3'-dideoxy-2'-fluorokanamycin A and 1-N-(-hydroxy-ω-aminoalkanoyl) derivatives thereof New compounds, 2',3'-dideoxy-2'-fluorokanamycin A and 1-N-(-hydroxy-ω-aminoalkanoyl) derivatives thereof, particularly 1-N-(DL- or L-3-amino-2-hydroxypropionyl)- and 1-N-(L-4-amino-2-hydroxybutyryl)-2',3'-dideoxy-2'-fluorokanamycins A are now... | 04/28/1987 |
| 4656160 | Aminoglycoside derivatives Aminoglycoside derivatives and pharmaceutically acceptable salts thereof which are useful as prophylactic and therapeutic agents for infectious diseases caused by pathogenic microorganisms, and a pharmaceutical composition comprising the same.... | 04/07/1987 |
| 4617293 | Flavonoid phosphate salts of aminoglycoside antibiotics Flavonoid phosphates of aminoglycoside antibiotics are useful sparingly soluble salts, e.g., for achieving a depot effect.... | 10/14/1986 |
| 4547492 | 1-N-(ω-Amino--hydroxyalkanoyl-2',3'-dideoxykanamycin A and pharmaceutical composition containing same 1-N-(L-3-amino-2-hydroxypropionyl)-2',-3'-dideoxykanamycin A and 1-N-(L-4-amino-2-hydroxybutyryl)-2',3'-dideoxykanamycin A are now provided which each is a new compound useful as antibacterial agent. The new compounds each is produced by acylating the 1-a... | 10/15/1985 |
| 4493831 | Aminoglycoside derivatives Aminoglycoside derivatives and pharmaceutically acceptable salts thereof which are useful as prophylactic and therapeutic agents for infectious diseases caused by pathogenic microorganisms, processes for the preparation thereof and a pharmaceutical compos... | 01/15/1985 |
| 4486419 | 5,2',3',4',4",6"-Hexadeoxykanamycin and its 1-N-acylated derivative 5,2',3',4',4",6"-Hexadeoxykanamycin and 1-N-[(S)-4-amino-2-hydroxybutyryl]-5,2',3',4',4",6"-hexadeoxykanamycin are now provided, which are each a new compound useful as antibacterial agent. The hexadeoxykanamycin is semi-synthetically produced from 3... | 12/04/1984 |
| 4455419 | 2'-Modified kanamycins and production thereof 2'-Modified kanamycins, including 2'-deoxykanamycin A, 2'-epikanamycin A and 2'-epikanamycin B, as new compounds are produced starting from kanamycin A by consecutive reaction steps. These new compounds are useful as antibacterial agent.... | 06/19/1984 |
| 4424343 | Preparation of 1-N-[ω-amino--hydroxyalkanoyl]kanamycin polysilylates and products An improved process for the preparation of 1-N-[ω-amino--hydroxyalkanoyl]kanamycins comprises acylating a polysilylated kanamycin in a substantially anhydrous organic solvent with an acylating derivative of an ω-amino--hydroxyalkanoic ... | 01/03/1984 |
| 4410516 | 1-N(Hydroxy-ω-aminoalkanoyl) derivatives of 5,3',4'-trideoxy- or 5,3', 4'-trideoxy-6'-N- methyl- or 5, 3', 4',6"-tetradeoxykannamyci B and production thereof New antibacterial compounds are provided, including a 1-N-(-hydroxy-ω-aminoalkanoyl)-5,3',4'-trideoxykanamycin B; a 1-N(-hydroxy-ω-aminoalkanoyl)-5,3',4',641 -tetradeoxykanamycin B; and a 1-N-(-hydroxy-ω-aminoalkanoyl)-5,3',4'... | 10/18/1983 |
| 4359572 | Process for the production of 3'-deoxykanamycin A and intermediate product 3'-Deoxykanamycin A useful as an antibacterial agent can be produced by a new process comprising reacting a 2',2"-di-O-acylated-3'-O-sulfonylated-tetra-N-protected derivative of kanamycin A with a base such as alkali metal alcoholate in a lower alkanol ... | 11/16/1982 |
| 4357465 | 3',4'-Diedeoxykanamycin B derivatives New routes are provided for the synthesis of 3',4'-dideoxykanamycin B which is effective in inhibiting kanamycin-resistant organisms from kanamycin B through new intermediate, of which a fundamental process comprises a new reaction of a 3',4'-epoxy deriva... | 11/02/1982 |
| 4357466 | Processes for the production of 3'-deoxykanamycin A and intermediates 3'-Deoxykanamycin A useful as antibacterial agent is produced from a protected kanamycin A derivative either by a process comprising imidazolylthiocarbonylation of the 3'- and 2"-hydroxyl groups of 4",6"-O-cyclohexylidene-4'-0:6'-N-carbonyl-5,2'-O-isoprop... | 11/02/1982 |
| 4349666 | Process for the production of kanomycin B derivatives and products obtained therefrom 3'-Deoxykanamycin B, namely tobramycin is produced in an improved yield with a reduced reaction time under moderate reaction conditions, starting from a penta-N-protected 3'-mono-O-alkyl-, aralkyl- or arylsulfonylated derivative of kanamycin B in which al... | 09/14/1982 |
| 4337336 | Derivative of kanamycin A and a process for the preparation thereof There are provided new compounds, 3',4'-anhydro-4'-epi derivatives of kanamycin A of the formula: ##STR1## wherein R represents an alkyl, aralkyl or aryl group and Y represents an alkylidene, aralkylidene, cycloalkylidene or tetrahydropyranylidene gr... | 06/29/1982 |
| 4298727 | 3',4'-Dideoxykanamycin A and 1-N-(S)--hydroxy-ω-aminoalkanoyl) derivatives thereof 3',4'-Dideoxy derivative and 1-N-((S)--hydroxy-ω-aminoalkanoyl)-3',4'-dideoxy derivative of kanamycin A are now synthetized from kanamycin A and show a wider and/or higher antibacterial activity than the parent kanamycin A so that they are us... | 11/03/1981 |
| 4297485 | Production of a selectively protected N-acylated derivative of an aminoglycosidic antibiotic Aminoglycosidic antibiotic comprising a 6-0-(3"-aminoglycosyl)-2-deoxystreptamine optionally having a 4-0-(aminogycosyl) group, such as kanamycins, gentamicins, sisomicin, forms reversible complex with zinc cations by association of the zinc cations ... | 10/27/1981 |
| 4284764 | Process for the preparation of 5-fluoro-5-deoxy and 5-epi-fluoro-5-deoxy-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols and novel 5-fluoro-5-deoxy and 5-epi-fluoro-5-deoxy derivatives produced thereby A novel process whereby 4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols are reacted with a dialkylaminosulfur trifluoride to produce novel 5-fluoro-5-deoxy and 5-epi-fluoro-5-deoxy-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitol antibacterial agents.... | 08/18/1981 |
| 4282350 | Selective 3"-N-acylation of 1,3"-di-N-unprotected-poly-N-protected-4,6-di-O-(aminoglycosyl)-1,3-diam inocyclitols This invention describes a novel process whereby 1,3"-di-N-unprotected-poly-N-protected-4,6-di-O-(aminoglycosyl)-1,3-diamin ocyclitols are selectively acylated at the 3"-N-position with 1-Z-imidazole, wherein Z is an amino protecting group; to produce nove... | 08/04/1981 |
| 4268664 | Process for the preparation of 1-N-isoseryl- or 1-N-(L-4-amino-2-hydroxybutyryl)-3',4'-dideoxykanamycin B and intermediates thereof 1-N-Isoseryl- or 1-N-(L-4-amino-2-hydroxybutyryl)-3',4'-dideoxykanamycin B is prepared through a new route starting from 3',4'-dideoxy-3',4'-didehydrokanamycin B, which comprises the steps of protecting all or some of the four amino groups other than the ... | 05/19/1981 |
| 4242331 | Aminoglycosides and method of use Novel aminoglycoside derivatives of desoxystreptamines of the formula ##STR1## wherein R1 and R2 are selected from the group consisting of hydrogen and hydroxyl with at least one of them being hydrogen and their non-toxic, pharm... | 12/30/1980 |
