摘要:
Reinforced directional drilling assemblies and methods of forming reinforced directional drilling assemblies are provided. Strengthening materials may be incorporated into a resilient layer and/or a polymer-based composite material within a directional drilling assembly to improve the durability and performance of a power section within the directional drilling assembly. Inclusion of strengthening materials within a directional drilling assembly may provide a method to detect the status of a power section and send a signal from downhole upon detecting status of the power section. Inclusion of strengthening materials also may provide a method to collect data about operating conditions, including pressure, temperature, torque, RPM, stress level, shock, vibration, downhole weight on bit, and/or equivalent circulating density to send to the surface or to MWD/LWD systems. The strengthening materials may collect data by themselves or in conjunction with a sensor.
摘要:
Reinforced directional drilling assemblies and methods of forming reinforced directional drilling assemblies are provided. Strengthening materials may be incorporated into a resilient layer and/or a polymer-based composite material within a directional drilling assembly to improve the durability and performance of a power section within the directional drilling assembly. Inclusion of strengthening materials within a directional drilling assembly may provide a method to detect the status of a power section and send a signal from downhole upon detecting status of the power section. Inclusion of strengthening materials also may provide a method to collect data about operating conditions, including pressure, temperature, torque, RPM, stress level, shock, vibration, downhole weight on bit, and/or equivalent circulating density to send to the surface or to MWD/LWD systems. The strengthening materials may collect data by themselves or in conjunction with a sensor.
摘要:
A compound of the formula I ##STR1## wherein: R.sup.1 is hydrogen, (1-6C)alkyl, or (1-4C)alkanoyl;R.sup.2 is phenyl, a C-linked aromatic 5- or 6-membered heterocyclic ring containing one of oxygen and sulphur and/or one or two nitrogen, or (1-8C)alkyl, alkenyl or alkynyl unsubstituted or substituted by a phenyl or a C-linked aromatic 5- or 6-membered heterocylic ring containing one of oxygen and sulphur and/or one or two nitrogen, any phenyl being unsubstituted or substituted by one, two or three of (1-4C)alkyl, (1-4C)alkoxy, halogen, trifluoromethyl, hydroxy, benzyloxy and (1-5C)alkanoyloxy;A is N or CT in which T is hydrogen or (1-4C)alkyl;or a pharmaceutically acceptable salt thereof, processes for the manufacture of the compounds, and pharmaceutical compositions containing them. The compounds are useful as adenosine antagonists.
摘要:
Pharmaceutical compositions, containing a 4,4'-dihydroxy-3,3'-triphenylmethanedicarboxylic acid (or an oxidized derivative) as active ingredient, are described and are prepared conventionally in a form suitable for topical administration e.g. ointment. The compositions are useful for the treatment of inflammatory diseases and inflammatory conditions of the skin. Many of the active ingredients are novel compounds. A representative novel active ingredient is 4"-cyano-4,4'-dihydroxy-5,5'-dimethyl-3,3'-triphenylmethanedicarboxylic acid.
摘要:
Pharmaceutical compositions, containing a 4,4'-dihydroxy-3,3'-triphenylmethanedicarboxylic acid (or an oxidized derivative) as active ingredient, are described and are prepared conventionally in a form suitable for topical administration e.g. ointment. The compositions are useful for the treatment of inflammatory diseases and inflammatory conditions of the skin. Many of the active ingredients are novel compounds. A representative novel active ingredient is 4"-cyano-4,4'-dihydroxy-5,5'-dimethyl-3,3'-triphenylmethanedicarboxylic acid.
摘要:
R.sup.1 is hydrogen, (1-6C)alkyl, or (1-4C)alkanoyl;R.sup.2 (when not as hereinbelow defined together with X) is (1-6C)alkyl substituted by a group of formula R.sup.10 Xb(CO).sub.m in which m is 0 or 1, provided that when m is 0, X and Xb are separated by at least two carbon atoms, Xb is an imino group of formula --NRb in which Rb together with R.sup.10 and the adjacent nitrogen atom forms a morpholino, thiomorpholino, piperidino or azetidino ring;and X is oxy, thio, sulphinyl, sulphonyl or an imino group of formula --NRa-- in which Ra is hydrogen, (1-6C)alkyl or together with R2 and the adjacent nitrogen atom forms a morpholino, thiomorpholino, piperidino or azetidino ring; andA is N or CT in which T is hydrogen or (1-4C)alkyl;or a pharmaceutically acceptable salt thereof; processes for the manufacture of the compounds and pharmaceutical compositions containing them. The compounds are useful as adenosine antagonists.
摘要:
The invention concerns di- and tri-esters derived from alkanoic, (cycloalkyl)alkanoic, benzoic or phenylalkanoic acids with N-(acylaminoalkyl)-dihydroxyphenylethanolamines, and pharmaceutically acceptable salts thereof; processes for their preparation and manufacture; and pharmaceutical compositions thereof. The esters are useful for the topical treatment of an area of inflammation affecting the skin of a warm-blooded animal. Representative esters of the invention are 1-[3,4-bis(pivaloyloxy)phenyl]-2-[2-(2-phenylacetamido)ethylamino]-ethanol, 1-[3,4-bis(pivaloyloxy)phenyl]-2-[1,1-dimethyl-2-(2-phenoxyacetamido)-ethylamino]-ethanol, and the hydrochlorides and hydrobromides thereof.
摘要:
The invention concerns new topical anti-inflammatory 1-phenyl-2-aminoethanol derivatives of the general formula:R.sup.1 .multidot.CH(OH).multidot.CH.sub.2 NH.multidot.CR.sup.2 R.sup.3 .multidot.A.sup.1 .multidot.NH[CO.multidot.Y.multidot.NH].sub.n .multidot.Qwherein R.sup.1 is a phenyl bearing specific combinations of (2-12C)alkanoyloxy,[(2-12C)alkanoyloxy]methyl,chloro and amino substituents, R.sup.2 and R.sup.3 are independently hydrogen or (1-4C)alkyl, A.sup.1 is a (1-4C)alkylene, Y is a (1-4C)alkylene optionally bearing a (1-4C)alkyl or benzyl, n is an integer from 1 to 4, and Q is an optionally substituted benzoyl, phenylacetyl, or phenoxyacetyl together with the acid-addition salts thereof; and the pharmaceutical compositions thereof, for use in the treatment of inflammatory skin diseases and conditions. The invention also concerns processes for the manufacture of derivatives of formula I.A representative compound of the invention is 1-[3,4-bis(pivaloyloxy)phenyl]-2-{2-[(N-benzoylglycyl)amino]-1,1-dimethyl-ethylamino}ethanol.
摘要:
Optionally substituted 4-oxo-1,4-dihydrocinnolin-3-ylpropionic acid derivatives, processes for their preparation, pharmaceutical compositions containing them, and a method of treatment using them. A representative compound is ethyl 6-ethyl-1-methyl-4-oxo-1,4-dihydrocinnolin-3-ylpropionate. Compounds active as inhibitors of effects following the combination of reagin-like antibodies and their antigens.
摘要:
The invention concerns novel, pharmaceutically useful compounds of formula I in which Q is a 5-membered heteroaryl optionally bearing 1 or 2 substituents independently selected from (1-4C)alkyl and halogeno;R.sup.1 is hydrogen, (1-6C)alkyl, or (1-4C)alkanoyl;R.sup.2 (when not as hereinbelow defined together with X) is hydrogen, (3-12C)cycloalkyl, (3-6C)alkenyl, phenyl(3-6C)alkenyl, tetrafluorophenyl, pentafluorophenyl, 5- or 6-membered heteroaryl, optionally substituted (1-6C)alkyl or optionally substituted phenyl;X is oxy, thio, sulphinyl, sulphonyl or an imino group of formula --NRa-- in which Ra is hydrogen, (1-6C)alkyl or together with R2 and the adjacent nitrogen atom forms a 4 to 6-membered saturated heterocyclic ring; andA is N or CT in which T is hydrogen or (1-4C)alkyl; or a pharmaceutically acceptable salt thereof; processes for the manufacture of the compounds and pharmaceutical compositions containing them. The compounds are useful as adenosine antagonists. The invention further provides novel intermediates useful in the manufacture of the compounds of formula I. ##STR1##