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| Number | Title | Issue Date |
| 6538136 | Preparation of substituted piperidin-4-ones The present invention provides a novel process for the preparation of substituted piperidine-4-ones useful as intermediates in the preparation of pharmaceuticals.... | 03/25/2003 |
| 6514976 | Arylpiperazines having activity at the serotonin 1A receptor Described herein is a compound of the formula ##STR1## wherein Ar' is a mono or bicyclic aromatic or heteroaromatic radical substituted with one to three substituents selected from the group consisting of hydrogen, (C1 -C6)alkyl, (C | 02/04/2003 |
| 6362351 | Catalyst and method for amide formation The invention is a catalyst, the use of the catalyst and a method of using the catalyst in the formation of a compound with an amide bond. The catalyst is an HOBT derivative having the following formula (1): ##STR1## where R1 is a group bearing... | 03/26/2002 |
| 6358958 | Arylpiperazines having activity at the serotonin 1A receptor A series of aryl piperazine compounds are effective pharmaceuticals for the treatment of conditions related to or affected by the serotonin 1A receptor; the compounds are particularly effective antagonists at that receptor, and are particularly... | 03/19/2002 |
| 6319187 | Catalyst and method for amide formation The invention is a catalyst, the use of the catalyst and a method of using the catalyst in the formation of a compound with an amide bond. The catalyst is an HOBT derivative having the following formula (1): ##STR1## where R1 is a group bearing... | 11/20/2001 |
| 5942387 | Combinatorial process for preparing substituted thiophene libraries This invention relates to a novel solid phase process for the preparation of thiophene combinatorial libraries. These libraries have use for drug discovery and are used to form wellplate components of novel assay kits.... | 08/24/1999 |
| 5457098 | 17 yl 6 azaandrost-4,6 diazo-4-ene-3-ones There are disclosed preparation and compounds of formula (I): ##STR1## wherein R1 and R2 are hydrogen or lower alkyl or taken together are a --CH2 -- group to form a cyclopropane ring. X is ##STR2## wherein R | 10/10/1995 |
| 5407687 | Ranitidine solid dosage form The present invention comprises a bi-layer, pharmaceutical tablet having one layer formulated for the immediate release (IR) of ranitidine and a second layer formulated for sustained release (SR) of ranitidine with the ratio of ranitidine in the IR layer ... | 04/18/1995 |
| 5342947 | Preparation of water soluble camptothecin derivatives The present invention relates to the synthesis of water soluble, camptothecin derivatives of formula (I), ##STR1## wherein: n represents the integer 1 or 2; R1 represents independently, hydrogen, lower alkyl, (C3-7)cycloalkyl, (... | 08/30/1994 |
| 5318976 | Cyclic antitumor compounds The present invention relates to certain substituted tetracyclic fused quinoline derivatives of formula (I): ##STR1## wherein: R1 is hydrogen, hydroxy, fluoro, chloro, bromo, iodo, methoxy or amino; R2 is hydrogen, hydroxy, meth... | 06/07/1994 |
| 5302589 | Heterocyclic inhibitors of 5--testosterone reductase The present invention relates to certain substituted 17 ଲ-substituted carbonyl-6-azaandrost-4-en-3-ones of formula (I): ##STR1## wherein R1 and R2 are i) independently hydrogen or lower alkyl and the bond between the carbons ... | 04/12/1994 |
| 5261538 | Aerosol testing method The present invention comprises a method for measuring the amount, i.e., mass, of a volatile liquid which comprises passing the mass over a heat loss measuring device, calculating the amount of heat loss accompanying the vaporization of the mass and corre... | 11/16/1993 |
| 5241069 | Carbonate intermediates for the synthesis of purine substituted cyclopentene derivatives This invention relates to the new process for preparing the 1R-cis isomer of carbovir, (1R-cis)-amino-1,9-dihydro-9-[4-(hydroxymethyl)-2-cyclopenten-1-yl]-6H-pur in-6-one, an antiviral agent and intermediates of the formula (Vlb) use in that process ... | 08/31/1993 |
| 5223506 | Cyclic antitumor compounds The present invention relates to certain substituted tetracyclic fused quinoline derivatives of formula (I): ##STR1## wherein: R1 is hydrogen, hydroxy, fluoro, chloro, bromo, iodo, methoxy or amino; R2 is hydrogen, hydroxy, meth... | 06/29/1993 |
| 5187305 | S-nitroso-N-alkonoylpenicillamines The present invention relates to the compounds of formula (I), ##STR1## wherein R1 is C1-8 alkyl; C5-8 cycloalkyl;--(CH2)n --Si(CH3)3, wherein n is 1 to 5; C2-5 a... | 02/16/1993 |
| 5144034 | Process for the synthesis of cyclopentene derivatives of purines This invention relates to a new process for preparing certain optically active cyclopentene derivatives and novel intermediates used in this process. In particular, the invention concerns the synthesis of the 1'R-cis isomer of carbovir, (1'R-cis)-2-a... | 09/01/1992 |
| 5126452 | Synthesis of purine substituted cyclopentene derivatives This invention relates to new process for preparing certain optically active purine substituted cyclopentene derivatives and novel intermediates used in this process. In particular, the invention concerns the synthesis of the 1R-cis isomer of carbovir, ... | 06/30/1992 |
| 5126351 | Antitumor compounds The present invention relates to the compounds of formula (I), ##STR1## wherein: R1 is hydrogen, hydroxy or amino; R2 is hydrogen, hydroxy, methoxy or methoxymethoxy; R3 is hydrogen, hydroxy, amino, methoxy, methoxymethyoxy, or... | 06/30/1992 |
| 5126123 | Aerosol drug formulations This invention relates to aerosol inhalation drug formulations comprising one or more drugs and one or more soluble surfactants in propellant 134a.... | 06/30/1992 |
| 5087631 | Oxathi(SIV)azol-5-one compounds The present invention relates to the compounds of formula (I). ##STR1## wherein R1 is C1-8 alkyl, C2-8 alkenyl, C5-8 cycloalkyl, aryl-C1-4 alkyl, aryl or heteroaryl; or aryl or heteroaryl which i... | 02/11/1992 |
| 5057630 | Synthesis of cyclopentene derivatives This invention relates to a new process for preparing certain optically active purine substituted cyclopentene derivatives including the antiviral agent, carbovir, and novel intermediates used in this process. In particular, this invention concerns a synt... | 10/15/1991 |
