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Matches 551 - 600 out of 6,615

Document Document Title
WO/1996/004247A1
The present invention provides a process for making a compound having a structure according to formula (I) wherein A1, A2 and A3 are independently carbon or nitrogen and R1, R3, R4 and R6 are known quinolone substituents; and wherein one...  
WO/1996/004286A1
The present invention provides processes for making compounds of the structure (Q-L1)-L-(L2-B), wherein (I) Q is a quinolone moiety; (II) B is a lactam moiety; and (III) L, L1, and L2 together comprise a linking moiety; comprising the st...  
WO/1996/003373A1
Esters of 2-(2-azetidinon-N-yl)-2- and 3-butenoic acids of formula (I), wherein X is an acylamino group, Y is a S-substituted dithio group or a sulfonylthio group, or X and Y are joined to form a group (a), wherein R1 is the aliphatic, a...  
WO/1996/002548A1
Cephalosporin compounds of formula (I) are disclosed. The compounds are useful against MRSA/MRCNS. Compositions and methods of use are also included.  
WO1995035020A3  
WO/1995/035020A2
There are disclosed new compounds of formula (I), wherein R is: a hydrogen atom; a linear or branched C1-C4 alkyl group, unsubstituted or substituted by at least a phenyl group or at least a hydrogen atom; a benzyl group substituted by a...  
WO/1995/034567A1
New 9,12-epoxycyclohexano[3,4-c]cephalosporins of formula (I) are prepared starting from the corresponding ester obtained reacting a 7-phenylacetamido-3-cephem-4-carboxylic acid having in position 3 a leaving group, with furan, optionall...  
WO/1995/033753A1
The invention relates to a process for the preparation of trihydrated cefixime by reacting a functional derivative of N-protected (Z)-2-(2-aminothiazol-4-yl)-2-(tert-butoxycarbonylmethoxyimi no)acetic acid with 7-amino-3-vinyl-3-cepheme-...  
WO/1995/032210A1
Novel cephalosporin compounds of formula (I) exhibit potent and broad antibiotic activities against Gram-negative and Gram-positive bacteria and various resistant bacteria.  
WO/1995/029182A1
Intermediates in the production of cephalosporins of formula (IA) wherein either 'alpha') Ra denotes hydrogen or a silyl group; Rb denotes a group of formula -ORe, wherein Re denotes hydrogen or alkyl; and Rc and Rd together denote a bon...  
WO/1995/026966A1
The present invention includes novel (7R)-7-(acylamino)-3-(arylthio)-3-cephem-4-carboxylic acids or their pharmacologically acceptable salts which exhibit antibiotic activity against a wide spectrum of organisms including organisms which...  
WO1995019974A3  
WO/1995/025109A1
A cephem compound represented by general formula (1), which has an excellent antibacterial effect against various pathogenic bacteria, wherein Q represents CH or N; R1 represents carboxylate, etc.; R represents group (a) or (b); R3 repre...  
WO/1995/023153A1
Derivatives of 7-aminoceph-3-em-4-carboxylic acid with 6-fluoroquinolone derivatives in which the cephem and 6-fluoroquinolone moieties are bound to each other through a carboxamido bond as well as the pharmaceutical compositions contain...  
WO/1995/019974A2
Calixarene-based compounds are described which have biological activity, particularly anti-bacterial, anti-fungal, anti-cancer and anti-viral activity. Some compounds have been found to have anti-HIV activity. The compounds are calixaren...  
WO/1995/015966A1
2-spiro(2'-spirocycloalkyl)cyclopropyl cephalosporin sulfone compounds, methods of treating patients for elastase inhibition, and processes for preparing such compounds.  
WO/1995/013281A1
A process for producing a 3-substituted cephem compound from an allenyl-'beta'-lactam compound which can readily be prepared from an inexpensive penicillin compound in a short reaction path. The process comprises reacting an allenyl-'bet...  
WO/1995/009171A1
A cephalosporin derivative as a cephem compound having an excellent antibacterial activity and being useful as a remedy for various bacterial infections. It has an (un)substituted 2-(5-thiazolyl)vinyl group at the 3-position and is repre...  
WO/1995/007912A1
A compound represented by general formula (I), i.e., a cephem derivative having an (un)substituted imidazo[5,1-b]thiazolium-6-yl group at the 3-position of the ring, wherein X represents CH or N; R1 represents H, alkyl, alkenyl, etc.; an...  
WO/1995/007283A1
New cephem compounds of formula (I), wherein R1 is amino or protected amino, R2 is hydrogen, lower alkyl or hydroxy protective group, R3 is carboxy or protected carboxy, R4 is 3-pyridyl, 4-pyridyl or optionally substituted heteromonocycl...  
WO1995002603A3  
WO/1995/004739A1
A compound of formula (I) is disclosed. R13 represents hydrogen, NH2, C1-4 alkyl, C1-4 alkylamino or di(C1-4) alkylamino-; Y represents CH or N; Y" represents (a) CRgamma'Rz' with Rgamma' and Rz' hydrogen, C1-6 alkyl, C3-8 cycloalkyl or ...  
WO/1995/004740A1
L-valylamides and L-homovalylamides of 7alpha-amino-1,1-dioxo-3-cefem of formula (I), the process for obtaining them and the pharmaceutical compositions which contain them are described. The above-mentioned compounds are active in chroni...  
WO/1995/002603A2
The present invention relates to the use of known cephem derivatives of formula (I), wherein n is zero, one or two; R1 is hydrogen or an organic radical, R2 represents halo or an organic radical or R1 and R2 taken together with the C-2 c...  
WO/1994/029320A1
A cephalosporin compound represented by general formula (I) or a pharmaceutically acceptable salt thereof, a process for producing the same, and a medicinal use thereof, especially, as a preventive or remedy for infectious diseases, wher...  
WO/1994/029321A1
The present invention relates to novel cephem compounds having formula (I) wherein Q is a carbon or nitrogen atom; X is an oxygen atom, or a nitroalkylenyl or cyanoimine group, with the proviso that X cannot be an oxygen atom when Q is a...  
WO/1994/028003A1
The present invention provides compounds of formula (I) and pharmaceutically or veterinarily salts thereof; wherein R1 is hydrogen or halogen or an organic group; R2 is hydrogen or an optionally substituted C1-C6 alkyl, C3-C6 cycloalkyl,...  
WO/1994/022874A1
A cephalosporin derivative represented by general formula (I) or a salt thereof, wherein R1 represents hydrogen, lower alkenyl, lower alkynyl, cycloalkyl, hydroxyl-protecting group, or (un)substituted lower alkyl; R2 represents hydrogen,...  
WO/1994/021649A1
A new salt form of cefonicid and its method of preparation is disclosed.  
WO/1994/020504A1
The present invention provides cephalosporin sulphones of formula (I) and the pharmaceutically and veterinarily acceptable salts thereof, wherein n is one or two; A and B are both or each independently hydrogen or an organic radical; R1 ...  
WO/1994/020505A1
Anhydrous and crystalline free acid form of the cephalosporin antiobiotic ceftiofur, processes for its manufacture, and pharmaceutical compositions containing it are provided.  
WO/1994/018209A1
Provided is a process for isolating cefaclor from an acylation reaction mixture by adding anthraquinone-1,5-disulfonic acid to the mixture. The acid highly selectively precipitates with cefaclor so that isolation and recovery is streamli...  
WO/1994/014818A1
This invention relates to a compound of formula (I) and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a method for preventing and/or treating infecti...  
WO/1994/012504A1
A method of obtaining high-purity 7-aminocephalosporanic acid from an aqueous solution thereof contaminated with alpha-aminoadipic acid, which comprises treating the aqueous solution with a strongly basic styrene-base anion-exchange resi...  
WO/1994/010177A1
New cephem compounds of formula (I), wherein R1 is amino or protected amino, R2 is hydrogen, a hydroxy protective group, lower alkyl or mono(or di or tri)halo(lower)alkyl, R3 is carboxy or protected carboxy, and R4 is pyridylvinyl which ...  
WO/1994/007898A1
The present invention relates to novel cephalosporin derivatives or pharmaceutically acceptable non-toxic salts thereof useful as antibiotics and to processes for the preparation thereof. Formula (1) wherein: R1 is a hydrogen or an optio...  
WO/1994/006804A1
A cephem compound represented by general formula (I) and excellent in the bactericidal effect against various pathogenic bacteria, wherein Q represents CH or N; R1 represents carboxylate, etc.; R represents (II) or (III); R2 represents l...  
WO/1994/002490A1
A process for producing a cephem compound represented by general formula (3) which comprises reacting an allenyl-ss-lactam compound represented by general formula (1) with an organotin compound represented by general formula (2) in the p...  
WO/1994/002489A1
A compound of formula (I) or a salt thereof, wherein: R1 is hydrogen, methoxy or formamido; R2 is an acyl group; CO2R3 is a carboxy group or a carboxylate anion, or R3 is a readily removable carboxy protecting group or a pharmaceutically...  
WO/1994/002491A1
A novel cephalosporin derivative represented by general formula (I), which has a potent antibacterial activity, a low toxicity and a high oral absorbability, and a nontoxic salt thereof, wherein R1 and R3 represent each hydrogen or lower...  
WO/1994/000457A1
Compound of formula (I) or salts thereof wherein R1 is hydrogen, methoxy or formamido; R2 is an acyl group; CO2R3 is a carboxy group or a carboxylate anion, or R3 is a readily removable carboxy protecting group or a pharmaceutically acce...  
WO/1993/024493A1
A novel cephalosporin compound represented by general formula (I), wherein R?1¿ represents -CX?1¿¿3?, X?1¿ representing H or halogen; R?2¿ represents -O-Q-Z?1¿, Q representing a C¿3?-C¿6? linking group present between O and Z?1¿...  
WO/1993/018044A1
Compounds of formula (I) or salts thereof: wherein R1 is hydrogen, methoxy or formamido; R2 is an acyl group; CO2R3 is a carboxy group or a carboxylate anion, or R3 is a readily removable carboxy protecting group or a pharmaceutically ac...  
WO/1993/016043A1
A $g(b)-lactam compound and a 2-(substituted methyl)-3-cephem compound, both being useful as an intermediate for the synthesis of cephem antibiotics and so forth. The lactam compound is represented by general formula (I), wherein R?1¿ r...  
WO/1993/016084A1
The invention relates to a new process for the depletion of 7-amino-3-[(E)-1-propen-1-y1]-3-cephem-4-carboxylic acid in mixtures of 7-amino-3-[(Z)-1-propen-1-y1]-3-cephem-4-carboxylic acid and 7-amino-3-[(E)-1-propen-1-y1]-3-cephem-4-car...  
WO/1993/015084A1
The present invention relates to new cephalosporin compounds of formula (I), particularly 3-position of cephem rings thereof substituted with new thione compounds and pharmaceutically acceptable salts thereof, which have broad antibacter...  
WO/1993/013108A1
Certain 7-beta-[2-(2-amino-4-thiazolyl)-(Z)-2-(chloromethylene)aceta mido]-3-[(substituted)methyl]-ceph-3-em-4-carboxylic acids, pharmaceutically-acceptable salts thereof and conventional in vivo hydrolyzable esters thereof are valuable ...  
WO/1993/013109A1
To provide a medicine with an excellent effect on both Gram-positive and negative bacteria. A cephalosporin derivative represented by general formula (I) and a nontoxic salt thereof, wherein R1 represents hydrogen or a protective group; ...  
WO/1993/012250A1
The present invention relates to an improved method for the preparation of certain $g(b)-lactam antibiotics by enzymatic acylation or by deprotection of a protected intermediate.  
WO/1993/011132A1
Described is a new method (systematic method) of preparing the antibiotic cefaclor of formula (I). Also described are new starting products and intermediates used in the method. The method is carried out as described in claim 1.  

Matches 551 - 600 out of 6,615