Abstract: Polyetherimide oligomers having crosslinking end cap moieties which provide improved solvent-resistance to cured composites are generally represented by the formula: ##STR1## wherein X=--O-- or --S--; ##STR2## n=1 or 2; ##STR3## E=allyl or methallyl; R=a trivalent C.sub.(6-13) aromatic organic radical;R.sub.1 =any of lower alkyl, lower alkoxy, aryl, or substituted aryl;R'=a divalent C.sub.(6-30) aromatic organic radical;j=0, 1, or 2; andG=--CH.sub.2 --, --O--, --S--, or --SO.sub.2 --Blends generally comprise substantially equimolar amounts of the oligomers and a comparable, compatible, noncrosslinking, etherimide polymer of substantially the same backbone. The crosslinkable oligomers are made by reacting substituted phthalic anhydrides with hydroxyaryl amines and suitable crosslinking end cap reactants, or by self-condensation of phthalimide salts followed by capping the polymers.
Abstract: A therapeutic method is provided, employing an antiviral compound of the general formula: ##STR1## wherein Z is H, OR' or N(R) .sub.2, wherein R' is H, (C.sub.1 -C.sub.4)alkyl, aryl, CHO, (C.sub.1 -C.sub.16)alkanoyl or O.dbd.P(OH) .sub.2, Y is CH or N, and X is selected from the group consisting of H, N(R) .sub.2, SR, OR' or halogen, wherein R is H, lower (C.sub.1 -C.sub.4)alkyl, aryl or mixtures thereof, and the pharmaceutically acceptable salts thereof.
Abstract: Strong, transparent and readily dispersible copper phthalocyanine pigments are obtained by grinding the crude pigment in the presence of from 1 to 10% by weight (based on the crude pigment) of an organic liquid at from 90.degree. to 140.degree. C., the pigment forms obtained giving printing inks with very good flow characteristics.
Abstract: There are provided pharmaceutical compositions and methods of utilizing them for the elevation of T.sub.4 lymphocytes levels in patients having subnormal levels thereof reducing the level of opportunistic infections in AIDS patients as well as, usually, P.sub.24 levels and also for inhibiting the activity of the HIV virus in patients which are HIV seropositive but may not exhibit AIDS symptoms, which comprise, as active constituent an effective amount of a compound selected from the group consisting of 9-amino-1,2,3,4-tetrahydroacridine and the acid addition salts thereof with pharmaceutically acceptable acids. There are also provided, for the same purpose chemical derivatives of 9-amino-1,2,3,4-tetrahydroacridine which are capable of degradation by human stomach acids, other gastric fluids or intestinal enzymes to 9-amino-1,2,3,4-tetrahydroacridine and have the formula 9-N(Q)-1,2,3,4-tetrahydroacridine, wherein Q is <(A.B) where A and B are the same or different and are biologically labile groups.
Abstract: Carboxamides represented by the formula (I): ##STR1## wherein Z represents the carbon atoms necessary to complete a 5- to 7-membered ring,R.sup.1, R.sup.2, and R.sup.3 may be the same or different and are selected from the group consisting of a hydrogen atom, a lower alkyl group, a cycloalkyl group, a halogen atom, an amino group, a lower alkylamino group, an alkoxy group, an acylamido group, a sulfonamido group, and a nitro group; andA represents an aminoalkyl moiety and acid addition salts thereof.
Abstract: The invention relates to an antimicrobial compound of the formula: ##STR1## wherein R.sup.1 is amino or a protected amino group,R.sup.2 is lower alkyl, lower alkenyl, carboxy (lower) alkyl or protected carboxy(lower)alkyl,R.sup.3 is hydrogen, lower alkyl, hydroxy(lower)alkyl, protected hydroxy(lower)alkyl, amino(lower)alkyl, protected amino(lower)alkyl or lower alkanoyl,R.sup.4 is hydrogen, lower alkyl or lower alkylthio, andZ is N or CHor a pharmaceutically acceptable salt thereof.
Abstract: A compound for formula I ##STR1## wherein X is sulfur or CH.sub.2 ;R.sup.1 is hydrogen, hydroxy, amino, C.sub.1-6 alkyl, C.sub.2-5 alkenyl, C.sub.2-6 alkynyl, phenyl optionally substituted with one to three C.sub.1-6 alkyl, C.sub.1-6 alkyloxy or hydroxy, C.sub.1-6 alkylthio, phenylthio optionally substituted with one to three C.sub.1-6 alkyl or C.sub.1-6 alkyloxy on the phenyl ring, phenylmethyloxy optionally substituted with one to three C.sub.1-6 alkyl or C.sub.1-6 alkyloxy on the phenyl ring, 1-morpholino, C.sub.1-6 alkyloxy, C.sub.2-6 alkenylmethyloxy, C.sub.3-6 alkynylmethyloxy, C.sub.1-6 alkylamino, C.sub.1-6 dialkylamino or a radical selected from the group consisting of ##STR2## in which n is 0 to 3, R.sup.5 is C.sub.1-6 alkyl or hydrogen, and R.sup.3 and R.sup.4 are independently C.sub.1-6 alkyl;R.sup.2 is hydrogen, a conventional amino protecting group or an acyl group;R.sup.0 is hydrogen or a conventional carboxy protecting group, or --CO.sub.2 R.sup.
Abstract: A compound of the formula ##STR1## wherein R.sub.1 is an aliphatic hydrocarbon of 1 to 8 carbon atoms, R.sub.a and R.sub.b are individually hydrogen or alkyl of 1 to 4 carbon atoms, R.sub.2 is hydrogen or optionally substituted alkyl of 1 to 12 carbon atoms, n is an integer from 1 to 6, Z is free carboxy or salified with an alkali metal, alkaline earth metal or NH.sub.4 and X is the remainder of an optionally substituted and optionally unsaturated 5 or 6-member ring and the wavy line indicates the .alpha.- or .beta.-position for R.sub.1 having anti-glucocorticoid activity.
Type:
Grant
Filed:
August 16, 1990
Date of Patent:
November 24, 1992
Assignee:
Roussel Uclaf
Inventors:
Martine Moguilewsky, Lucien Nedelec, Francois Nique, Daniel Philibert
Abstract: Disclosed are various titanyl phthalocyanine polymorphs such as Type I, Type II, Type III, Type IV, Type Z-1, Type Z-2, and Type X, which phthalocyanines can be prepared by dissolving a titanyl phthalocyanine in a solution of trifluoroacetic acid and a chlorinated hydrocarbon. There is then added to the resulting solution a solvent that will enable precipitation of the titanyl phthalocyanine. Subsequently, the titanyl phthalocyanine product can be separated from the solution by, for example, filtration and the product titanyl phthalocyanine obtained can be washed to remove any residual solvent.
Type:
Grant
Filed:
June 4, 1990
Date of Patent:
November 24, 1992
Assignee:
Xerox Corporation
Inventors:
James M. Duff, James D. Mayo, Cheng-Kuo Hsiao, Ah-Mee Hor, Terry L. Bluhm, Gordon K. Hamer, Peter M. Kazmaier
Abstract: Process for the preparation of 7.beta.-amino-3-substituted methyl-3-cephem-4-carboxylic acid derivatives, new intermediates comprising 7.beta.-(cyclo)alkylideneammonio-3-halomethyl-3-cephem-4-carbox ylic acid derivatives and 7.beta.-amino/ammonio-3-bromomethyl-3-cephem-4-carboxylic acid derivatives and the processes for the preparation of these intermediates.
Type:
Grant
Filed:
March 23, 1989
Date of Patent:
November 17, 1992
Assignee:
Gist-Brocades N.V.
Inventors:
Hendrik A. Witkamp, Jan J. DeKoning, Jan Verwej, Herman H. Grootveld, Everardus J. A. M. Leenderts
Abstract: The invention relates to intermediate compounds of the formula: ##STR1## wherein R.sup.3 is a lower alkyl, hydroxy(lower)alkyl or a protected hydroxy(lower)alkyl,R.sup.4 is amino or a protected amino group, andR.sup.5 is hydrogen or lower alkyl, or a salt thereof,useful in the preparation of compounds of antimicrobial activity.
Abstract: This invention relates to a novel process for making a cephem of formula II from 2-(3-amino-2-oxo-azetidin-1-yl)-2,3-butadienoate of formula I. In another aspect, this invention is concerned with a process of further converting a compound of formula II into an antibacterial cephem of formula III. ##STR1## In formulae I, II and III, R.sup.1 is hydrogen, a conventional amino protecting group or an acyl group; R.sup.2 is an aromatic heterocyclic or aryl group; R.sup.3 is a conventional carboxy protecting group or --CO.sub.2 R.sup.3 taken together forms a physiologically hydrolyzable ester; and R.sup.4 is a group selected from the group consisting of C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, cyclic C.sub.3-6 alkyl, and aryl; and n is 0 or 2.
Abstract: A method for producing 3-(3-oxobutyryloxymethyl)-3-cepham-4-carboxylic acids which are antibiotics or intermediates for the synthesis of antibiotics, at a low temperature in a very short period of time and in good yield, characterized by reacting a 3-hydroxylmethyl-3-cephem-4-carboxylic acid with diketene in the presence of a 4-(tertiary-amino)pyridine and if necessary, when a 7-acylamino-3-(3-oxobutyryloxymethyl)-3-cephem-4-carboxylic acid is obtained, subjecting it to deacylation at the 7-position thereof.
Abstract: There are described new benzoisothiazoles of general formula I ##STR1## wherein X and R have meanings given in the description, a process for their preparation and their use as pesticides, especially against nematodes.
Abstract: Antibacterial compounds of the formula ##STR1## in which R.sub.1 is a cyclic or secondary acyclic amino group which independently has antibacterial activity;R.sub.2 is hydrogen, lower alkoxy, lower alkylthio or formamido;R.sub.3 is hydrogen or an organic group bonded through carbon, oxygen, sulfur or nitrogen;R.sub.4 is an electronegative acidic group; or R.sub.3 and R.sub.4 together form a heterocycle; andR.sub.5 is hydrogen or lower alkyl, except when R.sub.3 and R.sub.4 form a heterocycle, in which case R.sub.5 is hydrogen only; and methods of using same.
Type:
Grant
Filed:
June 20, 1990
Date of Patent:
November 10, 1992
Assignee:
Hoffmann-La Roche Inc.
Inventors:
Dennis D. Keith, John L. Roberts, Chung-Chen Wei
Abstract: A composition comprising:(a) A 3-isothiazolone compound(b) a stabilizing amount of a metal salt, said metal salts selected from the group where the cation is copper, zinc, manganese, ferrous or ferric, and the anion is selected from the group consisting of an organic carboxylic acid of at least of six carbon atoms, EDTA, 8-hydroxyquinolinate, gluconate, o-phenanthroline, quinolinate, N,N-bis(2-hydroxy-5-sulfobenzyl) glycine, lignosulfonate polymers, and polyacrylates; and(c) a locus to be protected against the growth of algae, bacteria, or fungi, selected from the group consisting of:(i) a metal working fluid (MWF) comprising at least one component selected from the group consisting of an alkanolamine, a petroleum sulfonate emulsifier, a boric acid ester or boric acid amide, a corrosion inhibitor, and a fatty acid;(ii) cooling tower water comprising corrosion inhibitors or scale inhibitors,(iii) laundry dish water;(iv) a cosmetic formulation;(v) a fuel system;(vi) an emulsion;(vii) a solid protective or decor
Abstract: Antibacterial compounds of the formula ##STR1## in which R.sub.1 is a cyclic or secondary acyclic amino group which independently has antibacterial activity:R.sub.2 is hydrogen, lower alkoxy, lower alkylthio or formamido;R.sub.3 is hydrogen or an organic group bonded through carbon, oxygen, sulfur or nitrogen;R.sub.4 is an electronegative acidic group; or R.sub.3 and R.sub.4 together form a heterocycle; andR.sub.5 is a hydrogen or lower alkyl, except when R.sub.3 and R.sub.4 form a heterocycle, in which case R.sub.5 is hydrogen only; and methods of using same.
Type:
Grant
Filed:
July 21, 1989
Date of Patent:
October 27, 1992
Assignee:
Hoffmann-La Roche Inc.
Inventors:
Dennis D. Keith, John L. Roberts, Chung-Chen Wei
Abstract: Compounds of formula (II): ##STR1## wherein R.sub.4 ' is R.sub.4 whereinR.sub.4 is hydrogen, hydroxy, amino or OR.sub.5 whereinR.sub.5 is C.sub.1-6 alkyl, phenyl or phenyl C.sub.1-2 alkyl either of which phenyl moieties may be substituted by one or two halo, C.sub.1-4 alkyl or C.sub.1-4 alkoxy groups;or R.sub.4 ' is a group or atom convertible to R.sub.4 ; andR.sub.x is amino or protected amino;which are useful intermediates in the preparation of purine derivatives having antiviral activity.
Abstract: A novel process for the preparation of syn isomers of cephalosporanic acid derivatives of the formula ##STR1## comprising reacting first in a solvent and optionally in the presence of a base, a compound of the formula ##STR2## with a compound of the formulaR.sub.4 --SO.sub.2 --Hal IIIwherein R.sub.4 is selected from the group consisting of optionally substituted alkyl, aryl and aralkyl and Hal is a halogen and reacting the resulting product in a solvent and optionally in the presence of a base with a compound of the formula ##STR3## to obtain the compound of formula I' which are known to possess good antibiotic properties.