Abstract: There is disclosed a novel process for the enantioselective synthesis of chiral amino alcohols from keto oxime ethers, which are derived from cyclic ketones, via catalytic asymmetric reduction, employing oxazaborolidine-borane complex (OAB-BH.sub.3). In this catalytic reduction process two chiral centers are created in a single step with high levels of stereoselectivity.
Type:
Grant
Filed:
March 8, 1995
Date of Patent:
November 12, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Charles Boudreau, Richard D. Tillyer, David M. Tschaen
Abstract: This invention is concerned with an improved process for the synthesis of and intermediate en route to 5,6-dihydro-(s)-4-(ethylamino)-(s)-6-methyl-4h-thieno[2,3-b]thiopyran-2-su lfonamide 7,7-dioxide and related compounds. The instant process reduces the reaction time for the synthesis of the key intermediate from 3 to 4 days to from about 2 to about 4 hours while retaining the high enantiomeric purity of the product.
Type:
Grant
Filed:
April 26, 1995
Date of Patent:
November 12, 1996
Assignee:
Merck & Co., Inc.
Inventors:
David J. Mathre, Paul Sohar, Lynn M. Brown
Abstract: The compounds disclosed inhibit the prenylation of several proteins. These compounds are potent inhibitors of famesyl-protein transferase and geranylgeranyl-protein transferase. Further contained in this invention are chemotherapeutic compositions containing these prenyl-transferase inhibitors and methods for their production.
Type:
Grant
Filed:
October 26, 1994
Date of Patent:
November 12, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Neville J. Anthony, Robert P. Gomez, Charles A. Omer
Abstract: The present invention comprises analogs of the CA.sub.1 A.sub.2 X motif of the protein Ras that is modified by farnesylation in vivo. These CA.sub.1 A.sub.2 X analogs inhibit the farnesylation of Ras. Furthermore, these CA.sub.1 A.sub.2 X analogues differ from those previously described as inhibitors of Ras farnesyl transferase in that they have a prolyl like moiety in the A.sub.1 position. Further contained in this invention are chemotherapeutic compositions containing these farnesyl transferase inhibitors and methods for their production.
Type:
Grant
Filed:
September 29, 1994
Date of Patent:
November 5, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Neville J. Anthony, S. Jane deSolms, Samuel L. Graham
Abstract: Phenoxyphenylacetic acids and derivatives of the general structural formula I ##STR1## have endothelin antagonist activity and are useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebral and cardiac ischemia, myocardial infarction, endotoxic shock, benign prostatic hyperplasia, inflammatory diseases including Raynaud's disease and asthma.
Type:
Grant
Filed:
August 22, 1994
Date of Patent:
October 15, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Scott W. Bagley, Theodore P. Broten, Prasun K. Chakravarty, Daljit S. Dhanoa, Kenneth J. Fitch, William J. Greenlee, Nancy J. Kevin, Douglas J. Pettibone, Ralph A. Rivero, Thomas F. Walsh, David L. Williams, Jr., Richard B. Toupence, Jay M. Matthews
Abstract: 1-Carba-1-dethiacephalosporin compounds of the formula I ##STR1## are disclosed. The compounds are useful against MRSA/MRCNS. Compositions and methods of use are also included.
Type:
Grant
Filed:
February 22, 1995
Date of Patent:
October 15, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Lovji D. Cama, Milton L. Hammond, Mary F. Sasor
Abstract: Phenoxyphenylacetic acids and derivatives of the general structural formula I ##STR1## have endothelin antagonist activity and are useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebral and cardiac ischemia, myocardial infarction, endotoxic shock, benign prostatic hyperplasia, inflammatory diseases including Raynaud's disease and asthma.
Type:
Grant
Filed:
September 14, 1994
Date of Patent:
September 24, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Wallace T. Ashton, Linda L. Chang, William J. Greenlee
Abstract: Biphenylmethylimidazopyridines of the structure (I) are angiotensin (II) antagonists and therefore useful in the treatment of hypertension and related cardiovascular disorders and ocular hypertension.
Type:
Grant
Filed:
January 6, 1995
Date of Patent:
September 10, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Ralph A. Rivero, Prasun K. Chakravarty, William J. Greenlee, Nancy J. Kevin, Nathan B. Mantlo
Abstract: Pharmaceutical compositions and methods of using CCK-ligands D,L-glutamic acid and D,L-aspartic acid as antipsychotic, antianxiety, and agents useful in treatment or prevention of withdrawal symptoms caused by withdrawal of chronic or long term use of diazepam, alcohol, cocaine or nicotine and antianxiety agents are described.
Type:
Grant
Filed:
January 30, 1995
Date of Patent:
August 27, 1996
Assignee:
Merck Sharp and Dohme Limited
Inventors:
David C. Horwell, John Hughes, Geoff N. Woodruff
Abstract: There are disclosed novel compounds having the formula ##STR1## which exhibit antifungal activity.
Type:
Grant
Filed:
March 9, 1995
Date of Patent:
August 6, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Gerald F. Bills, James E. Curotto, Sarah J. Dreikorn, Rosalind G. Jenkins, Jerrold M. Liesch, Sandra A. Morris, John R. Thompson, Deborah L. Zink, Richard K. Jansson, Angela Basilio, Teresa Diez, Fernando Pelaez, Francisca Vicente
Abstract: A compound having the formula ##STR1## which is an anti-fungal agent is described. The producing organism Colletotricum accutatum is also described, along with a method of production.
Type:
Grant
Filed:
May 24, 1995
Date of Patent:
August 6, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Evon A. Bolessa, Robert E. Schwartz, Gerald F. Bills, Robert A. Giacobbe, Fernando Pelaez Perez, Angeles Cabello Arroyo, Teresa Diez Matas, Isabel Martin Fernandez, Francisca Vicente Perez, Suzanne M. Mandala, Deborah L. Zink, Rosemary Thornton, John R. Thompson, James E. Curotto
Abstract: A device for the controlled delivery of a beneficial agent as a gelatinous dispersion consisting of (i) a core which contains a beneficial agent, a polymer which forms gelatinous micoroscopic particles upon hydration and if desired an agent to modulate the hydration of the polymer; and (ii) an impermeable, insoluble coating which adheres to and surrounds the core and contains apertures which provide an area for the hydration and release of a disperson comprising gelatinous microscopic particles.
Abstract: Compounds represented by the formula I (SEQ ID NO. 1) are disclosed: ##STR1## as well as pharmaceutically acceptable salts and hydrates thereof. R.sup.I represents C.sub.9 to C.sub.19 alkyl, C.sub.9 to C.sub.19 alkenyl, an aryl group which includes phenyl, biphenyl, naphthyl and terphenyl or a C.sub.1 to C.sub.12 alkyl, alkylamino, dialkylamino or alkoxyaryl group.R.sup.1, R.sup.2 and R.sup.4 independently represent H or --OH.R.sup.3 represents H, --OH, --O(CH.sub.2).sub.n NR.sup.V R.sup.VI, where R.sup.V and R.sup.VI independently represent H or C.sub.1-4 alkyl, or --O(CH.sub.2).sub.n NR.sup.V R.sup.VI R.sup.VII+ Y.sup.-, wherein R.sup.V and R.sup.VI are as defined above, R.sup.VII represents H or C.sub.1-4 alkyl, n is an integer of from 2-6 inclusive, and Y represents a counterion.R.sup.5 represents H, --CH.sub.3 or --OH;R.sup.6 represents H or --CH.sub.3 ;R.sup.7 represents H, --CH.sub.3, --CH.sub.2 C(.dbd.O)NH.sub.2, --(CH.sub.2).sub.2 NR.sup.V R.sup.VI or --(CH.sub.2).sub.2 NR.sup.V R.sup.VI R.sup.
Type:
Grant
Filed:
April 4, 1994
Date of Patent:
July 30, 1996
Assignee:
Merck & Co., Inc.
Inventors:
James M. Balkovec, Frances A. Bouffard, Regina M. Black
Abstract: Cephalosporin compounds of the formula I ##STR1## are disclosed. The compounds are useful against MRSA/MRCNS. Compositions and methods of use are also included.
Type:
Grant
Filed:
May 26, 1995
Date of Patent:
July 30, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Lovji D. Cama, Mary F. Sasor, Milton L. Hammond
Abstract: The present invention relates to compounds of the formula: ##STR1## and the pharmaceutically acceptable salts thereof which are useful as potassium channel antagonists, particularly Maxi-K channel antagonists, and thus useful in treating Alzheimer's Disease and other cognitive disorders. This invention is also related to a method of making the compound of formula (I).
Type:
Grant
Filed:
January 24, 1994
Date of Patent:
July 30, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Maria L. Garcia, Robert A. Giacobbe, Otto D. Hensens, Seok H. Lee, Owen B. McManus, Deborah L. Zink
Abstract: A compound of the formula I is disclosed. ##STR1## R.sup.13 represents hydrogen, NH.sub.2, C1-4 alkyl, C1-4 alkylamino or di(C1-4)alkylamino-;Y represents CH or N;Y" represents (a) CR.sup.y' R.sup.z' with R.sup.y' and R.sup.z' hydrogen, C.sub.1-6 alkyl, C.sub.3-8 cycloalkyl or C.sub.1-6 alkyl substituted with C.sub.3-8 cycloalkyl, or (b) N substituted with OR.sup.14 with R.sup.14 representing H, C.sub.1-4 alkyl or C.sub.1-4 alkyl substituted with COOH.Ar represents: ##STR2## One of R.sup.1 and R.sup.2 independently represent H, W as defined below or one of the groups (a) through (d) below, and the other represents H or W. Pharmaceutical compositions and methods of use are also included.
Abstract: Phenoxyphenylacetic acids and derivatives of the general structural formula I ##STR1## have endothelin antagonist activity and are useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebral and cardiac ischemia, myocardial infarction, endotoxic shock, benign prostatic hyperplasia, inflammatory diseases including Raynaud's disease and asthma.
Type:
Grant
Filed:
September 14, 1994
Date of Patent:
July 23, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Wallace T. Ashton, Linda L. Chang, William J. Greenlee
Abstract: 1-Carba-1-dethiacephalosporin compounds of the formula I ##STR1## are disclosed. The compounds are useful against MRSA/MRCNS. Compositions and methods of use are also included.
Type:
Grant
Filed:
June 5, 1995
Date of Patent:
July 23, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Lovji D. Cama, Milton L. Hammond, Mary F. Sasor
Abstract: An improved gripping and pinching device particularly useful with laboratory glassware and adaptable for use with a robot or automated system, is disclosed. The device uses flexible tubing as a gripper, eyedropper pincher and as a pinch valve which biases and releases test tubes, vials or the like upon removal and application of a vacuum or pressurizing means.
Type:
Grant
Filed:
August 1, 1994
Date of Patent:
July 16, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Glenn Clarke, Gary S. Kath, Gregory W. King