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| Number | Title | Issue Date |
| 7186668 | Textured catalysts and methods of making textured catalysts A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides methods of making... | 03/06/2007 |
| 7001918 | 7-pyrrolyl tetracycline compounds and methods of use thereof A compound of Formula (I): wherein variables R, R1, R2, R3 and A are as defined in the ... | 02/21/2006 |
| 6992037 | Precious metal catalyst for debenzylation One aspect of the invention relates to catalyst composite containing a metal catalyst and a specifically defined carbon support containing a carbonaceous material. For example, the carbon support may have a total pore surface area of about 800 m2/g or mor... | 01/31/2006 |
| 6849615 | 13-substituted methacycline compounds 13-substituted methacycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 13-substituted methacycline compounds are described. ... | 02/01/2005 |
| 6500812 | 13-substituted methacycline compounds 13-substituted methacycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 13-substituted methacycline compounds are described.... | 12/31/2002 |
| 5834450 | 9- (substituted amino) -alpha-6-deoxy-5-oxy tetracycline derivatives, their preparation and their use as antibiotics This invention relates to compounds of the formula ##STR1## wherein R1, R2 and R3 are defined as in the specification and the pharmaceutically acceptable salts of such compounds. Compounds of the formula I exhibit ant... | 11/10/1998 |
| 5686634 | Process for producing 5-hydroxy-6-demethyl-6-desoxy-6-methylene-11A-chlorotetracycline In a process for dehydrating 5-hydroxy-11a-chlorotetracycline-6,12-hemiketal to 5-hydroxy-6-demethyl-6-desoxy-6-methylene-11a-chlorotetracycline, utilizing an acid which is not decomposable by water, formic acid serves as a solvent free from chlorina... | 11/11/1997 |
| 5639742 | 9-[(substituted glycyl)amido]-6-(substituted)-5-hydroxy-6-deoxytetracyclines The invention provides compounds of the formula: ##STR1## wherein R, R1, R2 and W are defined in the specification. These compounds are useful as antibiotic agents.... | 06/17/1997 |
| 5371076 | 9-[(substituted glycyl)amido]-6-(substituted)-5-hydroxy-6-deoxytetracyclines The invention provides compounds of the formula: ##STR1## wherein R, R1, R2 and W are defined in the specification. These compounds are useful as antibiotic agents.... | 12/06/1994 |
| 5030387 | Organic conductive complex An organic conductive complex comprising an electron donor and an electron acceptor, the electron donor being an anthraquinone derivative represented by formula (1): ##STR1## wherein X1, X2, X3 and X4, whi... | 07/09/1991 |
| 4877559 | New process for the preparation of alpha-6-deoxy-5-hydroxytetracycline A homogenous hydrogenation process of preparing 6-demethyl-6-deoxy-6 methylene-5-hydroxytetracycline using a stereospecific tertiary phosphine-hydrozino-rhodium complex catalyst.... | 10/31/1989 |
| 4743699 | Homogeneous catalytic system and a process for the preparation of same A homogeneous stereospecific rhodium complex hydrogenation catalyst is prepared using a degassed organic solvent and eventually water.... | 05/10/1988 |
| 4659515 | Process for the preparation of 6-demethyl-6-deoxy-6-methylene-5-oxytetracyclin and the 11A-chloro-derivative thereof The invention relates to a new and improved process for the preparation of 6-demethyl-6-deoxy-6-methylene-5-oxytetracycline and the 11a-chloro derivative thereof by dehydrating 11a-chloro-5-oxytetracycline-6,12-hemiketal, which comprises treating 11a... | 04/21/1987 |
| 4500458 | Process for the preparation of -6-deoxytetracyclines An improved process for the preparation of -6-deoxytetracyclines and more particularly to the stereo specific hydrogenation of the 6-methylene group of 6-deoxy-6-demethyl-6-methylene-5-hydroxytetracyline and of its 11a-halo-analog, is described in ... | 02/19/1985 |
| 4126639 | Process for 11a-dehalogenation of 11a-halotetracyclines The 11a-dehalogenation of 11a-halo-6-methylenetetracyclines by treating them with a secondary or a tertiary phosphine or a tertiary phosphite.... | 11/21/1978 |
| 4089900 | Antimicrobial agents 4-Dedimethylaminotetracyclines and the corresponding 5a,6-anhydro derivatives having an oxo, hydroxy, substituted imino, amino or substituted amino group other than dimethylamino at the C.multidot.4-position useful as antimicrobial agents. The 4-oxo-... | 05/16/1978 |
| 4066694 | 4-Hydroxy-4-dedimethylamino-tetracyclines 4-Dedimethylaminotetracyclines and the corresponding 5a,6-anhydro derivatives having an oxo, hydroxy, substituted imino, amino or substituted amino group other than dimethylamino at the C.multidot.4-position useful as antimicrobial agents. The 4-oxo-... | 01/03/1978 |
| 4031137 | Catalysts based on carbon supports and use in catalytic deoxidation process Carbon particulates comprising carbon black spheres and a carbon binder having large pores as well as desirable pore size distribution are disclosed which serve as catalyst supports. The support carrying an effective amount of an activator is an active ca... | 06/21/1977 |
| 3993694 | Tetracycline derivatives and process for preparing them Antibacterially-active tetracyclines, substituted at the amide group, and physiologically-tolerable salts thereof, said tetracyclines having the formula ##SPC1## Methods of making the same; pharmaceutical compositions containing the same.... | 11/23/1976 |
| 3991111 | N-alkenyltetracycline derivatives N-alkenyltetracycline derivatives, for example, N-(1-methyl-2--naphthylethenyl)tetracycline represented by the formula ##SPC1## The compounds have excellent antibacterial action as compared with tetracycline.... | 11/09/1976 |
| 3983173 | 2-Carboxamido-substituted tetracyclines and process for their manufacture 2-Carboxamido-substituted tetracyclines of the general formula ##SPC1## A process for their preparation and compositions containing these compounds.... | 09/28/1976 |
| 3966808 | Manufacture of 6-methylenetetracyclines Methacycline (6-methylene-5-oxytetracycline) is prepared by halogenating oxytetracycline (5-hydroxytetracycline) to produce the 11a-halo-6,12-hemiketal, under conditions which form and maintain the product in the enolic form, reacting the hemiketal base w... | 06/29/1976 |
| 3962330 | Process for the preparation of 6-demethyl-6-deoxy-6-methylene-tetracyclines The invention relates to the preparation of 6-demethyl-6-deoxy-6-methylene-tetracycline by means of reductive dehalogenation of the corresponding 11a-halo-6-demethyl-6-deoxy-6-methylene-tetracycline, the reaction being carried out in presence of the ... | 06/08/1976 |
| 3962131 | Rhodium containing catalyst and use thereof in preparation of 6-deoxy-5-oxytetracycline Catalyst produced by the process of reacting 1 mol of rhodium trichloride and 2 mols of sodium acetate in methanol at a temperature from about 50°C. to the reflux temperature of said reaction mixture, then reacting resulting reaction mixture with 2 mols ... | 06/08/1976 |
