摘要:
What is described is a compound of formula (I), wherein R 1 and R 2 are the same or different, each a linear or branched alkyl with 1-9 carbons, or an alkenyl or alkynyl with 2 to 11 carbon atoms; L 1 and L 2 are the same or different, each a linear alkyl having 5 to 18 carbon atoms, or form a heterocycle with N; X 1 is a bond, or is -CO-O- whereby L 2- CO-O-R 2 is formed; X 2 is S or O; L 3 is a bond or a lower alkyl, or form a heterocycle with N; R 3 is a lower alkyl; and R 4 and R 5 are the same or different, each a lower alkyl; or a pharmaceutically acceptable salt thereof.
摘要:
Here described are compounds of formula I: wherein R1 and R2 is independently selected from a group consisting of C10 to C18 alkyl, C12 to C18 alkenyl, and oleyl group; wherein R3 and R4 are independently selected from a group consisting of C1 to C6 alkyl, and C2 to C6 alkanol; wherein X is selected from a group consisting of -CH2-, -S-, and -O- or absent; wherein Y is selected from -(CH2)n, -S(CH2)n, -O(CH2)n-, thiophene, -SO2(CH2)n-, and ester, wherein n = 1 -4; wherein a = 1 -4; wherein b=l -4; wherein c=l-4; and wherein Z is a counterion; and compounds consisting of the structure (targeting molecule)m-linker-(targeting molecule)n, wherein the targeting molecule is a retinoid or a fat soluble vitamin having a specific receptor on the target cell; wherein m and n are independently 0, 1, 2 or 3; and wherein the linker comprises a polyethylene glycol (PEG) or PEG-like molecule, as well as compositions and pharmaceutical formulations including one or both of these compounds which are useful for the delivery of therapeutic agents; and methods of using these compositions and pharmaceutical formulations.
摘要:
Here described are compounds of formula I: wherein R1 and R2 is independently selected from a group consisting of C10 to C18 alkyl, C12 to C18 alkenyl, and oleyl group; wherein R3 and R4 are independently selected from a group consisting of C1 to C6 alkyl, and C2 to C6 alkanol; wherein X is selected from a group consisting of -CH2-, -S-, and -O- or absent; wherein Y is selected from -(CH2)n, -S(CH2)n, -O(CH2)n-, thiophene, -SO2(CH2)n-, and ester, wherein n = 1 -4; wherein a = 1 -4; wherein b=l -4; wherein c=l-4; and wherein Z is a counterion; and compounds consisting of the structure (targeting molecule)m-linker-(targeting molecule)n, wherein the targeting molecule is a retinoid or a fat soluble vitamin having a specific receptor on the target cell; wherein m and n are independently 0, 1, 2 or 3; and wherein the linker comprises a polyethylene glycol (PEG) or PEG-like molecule, as well as compositions and pharmaceutical formulations including one or both of these compounds which are useful for the delivery of therapeutic agents; and methods of using these compositions and pharmaceutical formulations.
摘要:
Novel mono- and dihydroxy phenylethylamine derivatives useful in treating melanoma are provided having the formulae (Ia, Ib or Ic). In the above formulae, R is hydrogen or -COOR , R is hydrogen or C1-6 alkyl; R and R independently represent hydrogen and hydroxy, R is hydrogen, C1- 4 alkyl or halogen, X is -CHOH-, -CH2-oxygen or sulphur, m is zero or 1, W is oxygen or sulphur, and -ODrug, -NHDrug and -N(Drug)2 each represent a residue of a therapeutically active agent. The above compounds are prodrugs which are inactive until metabolised by enzymes expressed by host melanoma cells. The invention allows a greater amount of active agent to be used while reducing systemic side effects.
摘要:
The present invention relates to N-Acetylated alpha -Linked Acidic Dipeptidase (NAALADase) inhibitors enzyme activity, pharmaceutical compositions comprising such inhibitors, and methods of their use to inhibit NAALADase enzyme activity, thereby effecting neuronal activities, inhibiting angiogenesis, and treating glutamate abnormalities, compulsive disorders, prostate diseases, pain and diabetic neuropathy.
摘要:
Phenylacetylene derivatives represented by general formula (I) and agricultural/horticultural bactericides containing the same as the active ingredient, wherein X represents halogeno, C1-6 alkyl, C2-6 alkoxy, C2-6 haloalkyl, etc.; n is 0 or an integer of 1 to 4; R1 represents C1-6 alkyl; R2 represents hydrogen, C1-6 alkyl, C2-6 alkynyl, C1-6 alkoxy, etc.; A represents optionally branched C1-6alkylene; G represents oxygen, sulfur or -NR3- (wherein R3 represents hydrogen or C1-6 alkyl); and Y represents hydrogen, C1-10 alkyl (optionally substituted by halogeno, hydroxy or C1-6 alkoxy), C2-6 alkenyl, etc.
摘要:
In accordance with the present invention, there are provided conjugates of nitric oxide scavengers (e.g., dithiocarbamates, or "DC") and pharmacologically active agents (e.g., NSAIDs). Invention conjugates provide a new class of pharmacologically active agents (e.g., anti-inflammatory agents) which cause a much lower incidence of side-effects due to the protective effects imparted by modifying the pharmacologically active agents as described herein. In addition, invention conjugates are more effective than unmodified pharmacologically active agents because cells and tissues contacted by the pharmacologically active agent(s) are protected from the potentially damaging effects of nitric oxide overproduction induced thereby as a result of the co-production of nitric oxide scavenger (e.g., dithiocarbamate), in addition to free pharmacologically active agent, when invention conjugate is cleaved.