Abstract: A novel, stable, crystalline sodium (5R,6S,8R)-6-(1-hydroxyethyl)-2-(2-carbamoyloxyethylthio)-penem-3-carboxyl ate (designated as Form II) is prepared by forming a homogenous solution of sodium (5R,6S,8R)-6-(1-hydroxyethyl)-2-(2-carbamoyloxyethylthio)-penem-3-carboxyl ate combined with stirring the homogenous solution for a time and at a temperature sufficient to produce Form II and recovering Form II. Form II may also be prepared by contacting a first solution obtained by dissolving (5R,6S,8R)-6-(1-hydroxyethyl)-2-(2-carbamoyloxyethylthio)-penem-3-carboxyl ic acid in dimethylacetamide with a second solution obtained by dissolving a sodium salt of an organic acid having a pKa of up to about 5, e.g., sodium 2-ethylhexanoate in acetone, in the presence of at least 5 volume percent water while stirring the reaction mixture so formed at a temperature and for a time sufficient to produce Form II followed by recovering Form II.
Type:
Grant
Filed:
May 10, 1985
Date of Patent:
January 6, 1987
Assignee:
Schering Corporation
Inventors:
John K. Jenkins, John S. Chiu, Charles G. Eckhart, Paul E. McNamara, Stanley Rosenhouse, Richard E. Youngstrom
Abstract: A mascara application system features a mascara fluent having a viscosity range from 1,500 to 25,000 poises at ambient temperature; and a brush applicator having from 100 to 150 bristle strands per quarter inch of material, with a denier of approximately 0.003 to 0.004 inches. This system separates and combs the eyelashes as it simultaneously applies the mascara in an even and uniform manner.
Abstract: There is disclosed desevernitrose, acetamido, ethylamino and diethylamino derivatives of antibiotic 13-384 components 1 and 5 represented by the following formula ##STR1## wherein R is hydrogen, or ##STR2## wherein R.sup.1 is acetamide, ethylamine, diethylamine, N-hydroxylamino, nitroso or the pharmaceutically acceptable salts thereof.
Type:
Grant
Filed:
October 15, 1985
Date of Patent:
November 11, 1986
Assignee:
Schering Corporation
Inventors:
Ashit K. Ganguly, Olga Sarre, Viyyoor M. Girijavallabhan
Abstract: Compositions containing (-)-5-{(R)-1-Hydroxy-2[(R)-1-methyl-3-phenylpropyl)amino]ethyl}salicylamid e exhibit potent vasodilating .beta.-adrenergic blocking properties and are useful for the treatment of hypertension.
Abstract: This invention relates to 2-(N-heterocycloaliphaticthio)penems wherein the nitrogen of the heterocyclic ring is connected to the alkyl group, and to their use as antibacterial agents.
Type:
Grant
Filed:
March 25, 1983
Date of Patent:
September 30, 1986
Assignee:
Schering Corporation
Inventors:
Viyyoor M. Girijavallabhan, Ashit K. Ganguly, Patrick A. Pinto, Richard W. Versace
Abstract: The compound 4,7-dimethyl-2-(4-pyridinyl)-1,2,4-triazolo[1,5-a]pyrimidin-5(4H)-one and the pharmaceutically acceptable salts thereof are analgesic and anti-inflammatory agents. Methods for preparing and using the compound and salts are described.
Type:
Grant
Filed:
December 27, 1983
Date of Patent:
September 30, 1986
Assignee:
Schering Corporation
Inventors:
Richard E. Chipkin, Joseph T. Witkowski
Abstract: The antibiotic 13-384 complex is elaborated by a new variety of Micromonospora carbonacea; namely Micromonospora carbonacea var africana NRRL 15099.
Type:
Grant
Filed:
June 21, 1984
Date of Patent:
July 1, 1986
Assignee:
Schering Corporation
Inventors:
Jay A. Waitz, Mahesh G. Patel, Joseph A. Marquez, Manohar G. Kalyanpur, Ann C. Horan
Abstract: Antiviral (3-ethoxypropionate) esters of (+)-cyclaradine having the formula: ##STR1## In the monoester Ry and Rz are hydrogen. In the diester Ry is the 3-ethoxypropionyl group and Rz is hydrogen. In the triester, Ry and Rz are each 3-ethoxypropionyl groups.
Abstract: Disclosed is a mascara applicator whose brush contains alternating rows of long and short bristles. The alternating rows of long and short bristles allow for facile application of mascara while simultaneously combing and separating the eyelashes.
Abstract: Novel compounds with angiotensin-converting enzyme inhibitory activity are disclosed. Such compounds are useful in the treatment of cardiovascular disorders, especially hypertension and congestive heart failure, and are useful in the treatment of glaucoma.
Type:
Grant
Filed:
July 30, 1984
Date of Patent:
May 6, 1986
Assignee:
Schering Corporation
Inventors:
Elijah H. Gold, Bernard R. Neustadt, Elizabeth M. Smith
Abstract: Improved processes for the production of 6-hydroxyethyl-2-substituted thio penem-3-carboxylates which eliminate the step of using a silver reagent are disclosed.
Type:
Grant
Filed:
November 7, 1983
Date of Patent:
April 22, 1986
Assignee:
Schering Corporation
Inventors:
Viyyoor M. Girijavallabhan, Ashit K. Ganguly, Patrick A. Pinto, Richard W. Versace
Abstract: A novel sequence of highly selective chemical reactions for conversion of 3-Aryl-2-propyn-1-ols into cis-1-Aryl-3-fluoro-1-propene and into D,L-(threo)-1-Aryl-2-acylamido-3-fluoro-1-propanols is disclosed. Preparation of D-(threo)-1-Aryl-2-acylamido-3-fluoro-1-propanol antibacterial agents including the D-(threo)-3-fluoro-3-deoxy derivatives of chloramphenicol and thiamphenicol is also disclosed.
Type:
Grant
Filed:
September 19, 1984
Date of Patent:
April 15, 1986
Assignee:
Schering Corporation
Inventors:
Tattanahali L. Nagabhushan, Stuart W. McCombie