Abstract:
The use of compounds of the formula (I) Ar 1 -L 1 -Ar 2 -L 2 -C(R 3 )(R 4 )N(OR 1 )C(=Y)-R 2 (I) where Y is selected from O or S; R 1 is H, a salt or readily hydrolysable substituent; R 2 is selected from H or CH 3 , CH 2 F, CF 2 H or CF 3 ; R 3 and R 4 are selected independently from H, C 1-4 alkyl or alkenyl, CF 3 , CH 2 F, CF 2 H and F, with the proviso that if either R 3 or R 4 is H, then the other is not H; L 1 is a linker group; L 2 is a linker group comprising an optionally substituted or unsubstituted unsaturated branched or straight chain alkyl group; Ar 1 is an optionally substituted or unsubstituted aryl or heterocyclic group; and Ar 2 is an optionally substituted or unsubstituted aryl or heterocyclic group, in the treatment of 5-lipoxygenase mediated cancer provide improved therapies due to the effective inhibition of 5- lipoxygenase and long duration of activity in vivo after oral administration.
Abstract:
A fluid recovery system (10) for collecting formation fluid at the surface of a well (12) includes a downhole jet pump (20) and a surface diaphragm pump (40) having a plurality of diaphragms (42). The jet pump includes a fluid nozzle (22), an intake (24) directing the formation fluid into a jet (26), a mixing tube (28) for mixing the power fluid and the formation fluid, and a diffuser (30) for converting the velocity of the mixed fluid to pressure. A flow meter (50) and a pressure sensor (52) monitor the quantity and pressure of the power fluid to the jet pump.
Abstract:
The present invention relates to software enabled wizards that receive input from a user and use the input to generate a customized response. Embodiments of the present invention include design wizards, selection wizards and troubleshooting wizards advantageous for use in commerce, particularly within the chemical industry.
Abstract:
The present invention is concerned with combinations comprising a compound of formula (I): Ar-(L-Ar')q-(X)k-(Y)p-Q, which is a hydroxamic acid aryl derivative and a non-steroidal anti-inflammatory drug.
Abstract:
A process for the preparation of a compound of formula (I) wherein Ar is selected from the group consisting of aryl, heteroaryl, substituted aryl and substituted heteroaryl; R is a carboxylic acid or ester or a group capable of being converted to a carboxylic acid or ester group; R is selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl and substituted aryl; and X is halogen; which process comprises reacting a compound of formula (III) wherein R is selected from the group consisting of alkyl, aryl, substituted alkyl and substituted aryl, with a compound of formula R R R SiX wherein R , R , and R are independently chosen from alkyl and aryl.
Abstract translation:一种制备式(I)化合物的方法,其中Ar选自芳基,杂芳基,取代的芳基和取代的杂芳基; R是羧酸或酯或能够转化成羧酸或酯基的基团; R 1选自氢,烷基,取代的烷基,芳基和取代的芳基; X为卤素; 该方法包括使其中R 2选自烷基,芳基,取代的烷基和取代的芳基的式(III)化合物与式R 3 R 4 R 5的化合物反应, 其中R 3,R 4和R 5独立地选自烷基和芳基。
Abstract:
The present invention relates to a method for isolating proteins from a solution containing the proteins. The invention also relates to a method for the chromatographic separation of proteins. The present invention also relates to crosslinked hydroxylic polymer particles functionalized with temperature-responsive copolymer, and to methods of preparing such particles.
Abstract:
Amidine derivatives of opioids of the formula YN-X-(NH)n-C(=NR)-R' in which YN is a morphine-like opioid radical; X is a direct bond, a substituted or unsubstituted, branched, straight-chained or cyclic alkylene having from 1 to 6 carbon atoms, optionally containing one or two heteroatoms in the alkyl chain, or an optionally substituted, branched or straight-chained alkenylene having from 4 to 10 carbon atoms; R and R' are independently hydrogen, alkyl, substituted alkyl, alkene, substituted alkene, alkyne, substituted alkyne, aryl, substituted aryl, heterocycle, substituted heterocycle or cyano; and n is 0 when X is said direct bond, or n is 1 when X is said alkylene or alkenylene. The compounds are effective in treating pain, and have effect in the peripheral nervous system, with comparably less or no activity in the central nervous system.
Abstract:
The present invention is directed to a method for treating discolored natural diamond, especially Type IIa diamond and Type IaA/B diamond with nitrogen as predominantly B centers, for improving its color. The method includes preblocking and preshaping a discolored natural diamond to prevent its breakage in a high pressure/high temperature (HP/HT) press, placing said discolored natural diamond in a pressure transmitting medium which is consolidated into a pill. Next, the pill is placed into a HP/HT press at elevated pressure and elevated temperature within the graphite-stable or diamond-stable range of the carbon phase diagram for a time sufficient to improve the color of said diamond. Finally, the diamond is recovered from said press. Colorless and fancy colored diamonds can be made by this method.
Abstract:
This invention provides methods for the inhibition or treatment of gout which comprises administering to a mammal in need thereof an effective amount of a compound having activity as a leukotriene antagonist.
Abstract:
A method of inhibiting 5-lipoxygenase comprising administering to a mammal in need thereof an effective amount of a compound having formula (I), wherein R1 and R2 are independently hydrogen or C1-C6 alkyl; R3 is hydrogen, or a group of formula (a), wherein R4 is phenyl, substituted phenyl, naphthyl or substituted naphthyl, with the proviso that when R1 and R2 are both C1-C6 alkyl, R3 is not hydrogen; and pharmaceutically acceptable salts thereof.