Merck + Co., Inc.

Other

Susan M Schmitt

Burton G Christensen

David B Johnston

Ravindra N Guthikonda

Frank P DiNinno

Lovji D Cama

John F McCluskey

Katherine Bickert

Sharon Lake

A portable travel crib, play yard or other infant or child containment device is provided. The device may have longitudinal support structures. The device may also have an upper peripheral support structure provides an outward compressive force.

Portable crib or containment device

Carbapenems of the formula ##STR1## are useful antibacterial agents.

Cationic-2-heteroarylphenyl-carbapenem antibacterial agents

Carbapenem compounds of the formula ##STR1## are useful intermediates for preparing antibacterial agents.

Intermediates for preparing cationic-2-heteroaryl-phenyl-carbapenem

Carbapenem intermediates of the formula ##STR1## where: M is a removable protecting group for carboxy, and

Intermediates for preparing 2-heteroarylphenyl-carbapenem antibacterial

Carbapenems having the formula: ##STR1## are useful antibacterial agents.

2-(1,2,3-triazolylsubstituted)phenyl carbapenem antibacterial agents

2-heteroarylphenyl-carbapenem antibacterial agents

Disclosed are 2- and 6-substituted-1-carbadethiapen-2-em-3-carboxylic acids having the structure: ##STR1## wherein R.sup.6, and R.sup.7 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, alkenyl, aryl and aralkyl; A is a direct, single bond connecting the indicated S and C atoms, or A is a cyclic or acyclic connecting group selected, inter alia, from alkyl, cyclalkyl, aryl, heteroaryl, heteroalkyl; R.sup.1 and R.sup.2 inter alia, independently selected from hydrogen, alkyl, aryl; additionally, said carbamimidoyl is characterized by cyclic structures achieved by the joinder of the two nitrogen atoms via their substituents and by their joinder to connecting group A; additionally, 'carbamimidiums' are disclosed by quarternization of one of the nitrogen atoms of said carbammidoyl. Such compounds as well as their pharmaceutically acceptable salt, ester and amide derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds; pharamaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

2-carbamimidoyl-6-substituted-1-carbadethiapen-2-em-3-carboxylic acids

Disclosed are 2- and 6-substituted-1-carbadethiapen-2-em-3-carboxylic acids having the structure: ##STR1## wherein R.sup.6, R.sup.7 and R.sup.8 are inter alia, independently selected from the group consisting of hydrogen, alkyl, alkenyl, aryl and aralkyl. Such compounds as well as their pharmaceutically acceptable salt, ester and amide derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds, pharmaceutical compositions comprising such compounds and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

2-substituted-6-carbadethiapen-2-em-3-carboxylic acids

Compounds are disclosed of the structural formula: ##STR1## wherein R.sup.2 is independently selected from hydrogen, linear or branched C.sub.1 -C.sub.3 alkyl, which can be substituted with fluoro, hydroxy, or protected hydroxy, R.sup.3 is hydrogen or a protecting group, X is sulfur or selenium, Q is hydroxymethyl, carboxy or C.sub.1 -C.sub.4 alkoxycarbonyl, and R.sup.1 is C.sub.1 -C.sub.4 alkyl, C.sub.6 -C.sub.10 aryl, or pyridyl which can be substituted with C.sub.1 -C.sub.4 alkyl, alkoxy and nitro; such compound are useful for selectively obtaining 1-.beta.-methylcarbapenem intermediates.

Process for chiral synthesis of 1-beta-methyl-carbapenem intermediates

A process is described for selectively obtaining 1-.beta.-methylcarbapenem intermediates. The desired chirality is obtained through the hydrogenation of certain bicyclic .beta.-lactam ring structures containing an exocyclic methylene double bond alpha to the .beta.-lactam ring, in the presence of a Group VIII metal hydrogenation catalyst. The hydrogenation results in a mixture of .alpha.- and .beta.-methyl epimers having a high .beta./.alpha.epimeric ratio. New 1-.beta.-methylcarbapenem intermediates made by the process are also described.

Intermediates for process for chiral synthesis of

A process is described for selectively obtaining 1-.beta.-methylcarbapenem intermediates. The desired chirality is obtained through the hydrogenation of certain bicyclic .beta.-lactam ring structures containing an exocyclic methylene double bond alpha to the .beta.-lactam ring, in the presence of a Group VIII metal hydrogenation catalyst. The hydrogenation results in a mixture of .alpha.- and .beta.-methyl epimers having a high .beta./.alpha. epimeric ratio. New 1-.beta.-methylcarbapenem intermediates made by the process are also described.

.beta.-lactams containing an .alpha.-exocyclic double bond

Process for chiral synthesis of 1-.beta.-methylcarbapenem intermediates

Disclosed are 3- and 6-substituted 7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acids having the structure: ##STR1## wherein R.sup.6, R.sup.7 and R.sup.8 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, alkenyl, aryl and aralkyl. Such compounds as well as their pharmaceutically acceptable salt, ester and amide derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds, pharmaceutical compositions comprising such compounds and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Disclosed are 3-substituted-6-(1'-hydroxyethyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-ca rboxylic acids having the structure: ##STR1## wherein R.sup.8 is, inter alia, selected from the group consisting of hydrogen, alkyl, alkenyl, aryl and aralkyl. Such compounds as well as their pharmaceutically acceptable O- and carboxyl derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds, pharmaceutical compositions comprising such compounds and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Growing community of inventors

Scotch Plains, NJ, United States of America

Susan M Schmitt