Abstract: Crystalline adducts of 7-[(Z)-2-methoxyimino-2-(2-aminothiazol-4-yl)acetamido-3-[(1-methyl-1-pyrr olidinium)methyl]-3-cephem-4-carboxylate selected from the group consisting of the di(1-methyl-2-pyrrolidinone) adduct and the di(N-formyl pyrrolidine) adduct and salt complexes thereof have been found to be stable at even high temperatures. The crystalline adducts are prepared by forming an admixture of adducting agents, zwitterions and seed adduct crystals and inducing crystallization followed by isolating the crystals. A process for preparing adduct salt complexes is also disclosed. Crystalline zwitterion can be formed by slurrying the adducts in a solvent which removes the adducting agents.
Type:
Grant
Filed:
January 10, 1986
Date of Patent:
July 14, 1987
Assignee:
Bristol-Myers Company
Inventors:
Murray A. Kaplan, Joseph B. Bogardus, Robert A. Lipper
Abstract: A new and novel process for the preparation of encainide (4-methoxy-2'-[2-(1-methyl-2-piperidyl)ethyl]-benzanilide) has been developed. The process utilizes .alpha.-picoline, O-nitrobenzaldehyde, and anisoyl chloride as starting materials.
Abstract: A series of nootropic compounds of the following formula: ##STR1## and its pharmaceutically acceptable acid addition salts, wherein: R.sup.2 is hydrogen, lower alkyl, aryl which is optimally substituted, or hetaryl;R.sup.7 is hydrogen or is combined with R.sup.9 as a fused benzo-ring;R.sup.8 is hydrogen or lower alkyl; andR.sup.9 is lower alkyl, or R.sup.9 can be combined with R.sup.8 to give a 2-pyrrolidinone, a phthalimide, or isoindolone ring system.Pharmacological testing demonstrates that the series possesses cognition and memory enhancing actions and/or mild CNS simulation.
Abstract: 3-[(Z)-1-Propen-1-yl]-7-acylamido cephalosporins in which the 7-acyl group is phenylglycyl or substituted phenylglycyl are orally active antibiotics against Gram+ and Gram- bacteria.
Abstract: The novel compound N-[(3-aminoproypl)aminobutyl]-Z-(F-guandino-3-hydroxyheptanamido)-2-methox yethanamide or a pharmaceutically acceptable salt thereof which has antitumor activity in experimental animals.
Type:
Grant
Filed:
April 15, 1985
Date of Patent:
April 14, 1987
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
Abstract: There is disclosed a process for the preparation of N.sup.7 -amidino substituted mitomycin C derivatives. The process comprises reacting mitomycin C or an N.sup.1a substituted derivative thereof such as porfiromycin with a chloroformimidinium salt in a polar solvent at low temperature. This reaction is conducted in the presence of a tertiary amine. This process eliminates the need for a strong base such as NaH prior to addition of a chloroformimidinium salt.
Abstract: 7-Acylamino-9a-methoxymitosanes having enhanced capacity to inhibit animal tumors in vivo relative to mitomycin C are produced by N.sup.7 -acylation of 7-amino-9a-methoxymitosane, or N.sup.1a,N.sup.7 -diacylation thereof. Carboxamide, thiocarboxamide, urea, thiourea, urethane, thiophosphoramide, phosphoramide, and sulfonamide derivatives are disclosed.
Type:
Grant
Filed:
December 23, 1983
Date of Patent:
February 10, 1987
Assignee:
Bristol-Myers Company
Inventors:
Takushi Kaneko, Henry S. L. Wong, Terrence W. Doyle
Abstract: Buspirone and its pharmaceutically acceptable salts are useful in alleviation of panic disorders which can take the form of clinical syndromes comprising, for example, panic attacks, agoraphobia and phobic anxiety.
Type:
Grant
Filed:
October 25, 1985
Date of Patent:
January 6, 1987
Assignee:
Bristol-Myers Company
Inventors:
Neil M. Kurtz, Roger E. Newton, Davis L. Temple, Jr.
Abstract: Process for producing 1-halo-2-deoxy-2-fluoroarabinofuranoside derivatives bearing protective ester groups from 1,3,5-tri-O-acylribofuranose; the 1-halo compounds are intermediates in the synthesis of therapeutically active nucleosidic compounds.
Type:
Grant
Filed:
November 18, 1983
Date of Patent:
November 25, 1986
Assignee:
Bristol-Myers Company
Inventors:
Steven P. Brundidge, Henry G. Howell, Chester Sapino, Jr., Chon-Hong Tann
Abstract: The present invention relates to 7-[(D)-2-amino-2-(3-hydroxyphenyl)acetamido]-3-[(Z)-1-propenyl]-3-cephem-4 -carboxylic acid, which is an orally active antibiotic against Gram-positive and Gram-negative bacteria.
Abstract: 4-Hydroxy-3-methoxy-N-[2-[2-(1-methyl-2-piperidinyl)ethyl]-phenyl]benzamide is an antiarrhythmic agent having relatively low toxicity and increased duration of action.
Abstract: 3-[(Z)-1-Propen-1-yl]-7-acylamido cephalosporins in which the 7-acyl group is phenylglycyl or substituted phenylglycyl are orally active antibiotics against Gram+ and Gram- bacteria.
Abstract: Symmetrical bis-amidine derivatives of mitomycin C may be converted to unsymmetrical bis-amidine analogs by reaction with secondary amines. The compounds are active anti-tumor agents in experimental animal tumors.
Type:
Grant
Filed:
October 15, 1985
Date of Patent:
May 20, 1986
Assignee:
Bristol-Myers Company
Inventors:
Dolatrai M. Vyas, Takushi Kaneko, Terrence W. Doyle
Abstract: Symmetrical bis-amidine derivatives of mitomycin C may be converted to unsymmetrical bis-amidine analogs by reaction with secondary amines. The compounds are active anti-tumor agents in experimental animal tumors.
Type:
Grant
Filed:
November 19, 1984
Date of Patent:
April 1, 1986
Assignee:
Bristol-Myers Company
Inventors:
Dolatrai M. Vyas, Takushi Kaneko, Terrence W. Doyle
Abstract: An aminopropylaminobleomycin represented by the following formula or a salt thereof, which is minimized in side effects such as pulmonary toxicity:[BX]--NH--(CH.sub.2).sub.3 --A--)CH.sub.2).sub.3 --Bwherein[BX] represents the acyl group of bleomycinic acid whose formula differs from that of bleomycin acid by the removal of the hydroxyl group from the carboxyl group of said acid;A represents a group of the general formula ##STR1## wherein R.sub.1 is a lower alkyl or benzyl,R.sub.2 is a lower alkyl or benzyl,R is a lower alkylene, andn is 0 or 1; andB represents a group of the formula ##STR2## wherein (i) R.sub.3 is hydrogen and R.sub.4 is(a) benzyl substituted by one or more halogen atoms, provided that the benzyl is substituted by two halogen atoms when R.sub.
Type:
Grant
Filed:
June 12, 1985
Date of Patent:
February 4, 1986
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
Abstract: 9a-Methoxymitosane derivatives having the amidino group at one or both of the 7-position and the carbamoyl-N positions are prepared by reaction of mitomycin A, mitomycin C, or an N.sup.1a -substituted analog thereof with an amide acetal, iminothioether, halomethyleniminium halide, or iminohalide salt.
Type:
Grant
Filed:
October 5, 1984
Date of Patent:
January 28, 1986
Assignee:
Bristol-Myers Company
Inventors:
Dolatrai M. Vyas, Takushi Kaneko, Terrence W. Doyle
Abstract: An aminopropylaminobleomycin represented by the following formula or a salt thereof, which is minimized in side effects such as pulmonary toxicity:[BX]--NH--(CH.sub.2).sub.3 --A--(CH.sub.2).sub.3 --Bwherein[BX] represents the acyl group of bleomycinic acid whose formula differs from that of bleomycin acid by the removal of the hydroxyl group from the carboxyl group of said acid;A represents a group of the general formula ##STR1## wherein R.sub.1 is a lower alkyl or benzyl,R.sub.2 is a lower alkyl or benzyl,R is a lower alkylene, andn is 0 or 1; andB represents a group of the formula ##STR2## wherein (i) R.sub.3 is hydrogen and R.sub.4 is(a) benzyl substituted by one or more halogen atoms, provided that the benzyl is substituted by two halogen atoms when R.sub.
Type:
Grant
Filed:
July 27, 1984
Date of Patent:
August 27, 1985
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
Abstract: 3-[(Z)-1-Propen-1-yl]-7-acylamido cephalosporins in which the 7-acyl group is phenylglycyl or substituted phenylglycyl are orally active antibiotics against Gram+ and Gram- bacteria.
Abstract: N-[4-[(3-aminopropyl)amino]butyl]-2,2-dihydroxyethanamide is an immunostimulant in animals and an intermediate for synthesis of the antibiotic BMG162-aF2.
Type:
Grant
Filed:
February 27, 1984
Date of Patent:
May 21, 1985
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
Abstract: N-[4-(3-Aminopropyl)aminobutyl]-2-(.omega.-guanidino-fatty acid-amido)-2-substituted-ethanamides represented by the general formula ##STR1## wherein Y represents --(CH.sub.2 --CH.sub.2 --, --CH.dbd.CH or ##STR2## R represents a hydrogen atom, an alkyl group of 1 to 4 carbon atoms which may have a hydroxyl group as substituent, or a benzyl group, and n is an integer of from 1 to 8, provided that when Y is ##STR3## and n is 4, R represents the groups other than the hydrogen atom; a salt thereof having antitumor activity in experimental animal tumors and a process for the preparation thereof is provided.
Type:
Grant
Filed:
September 29, 1982
Date of Patent:
May 21, 1985
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai