or a pharmaceutically acceptable salt, tautomer or stereoisomer thereof, wherein R1, R2, L1, L2, L3, X, a, b, c, n, and m are as defined herein, are provided. Uses of such compounds for modulating androgen receptor activity and uses as therapeutics as well as methods for treatment of subjects in need thereof, including prostate cancer are also provided.
摘要:
When a healthy and balanced diet is not achieved, nutritional supplements are used to help deal with the resulting health issues and enhance the body's performance. Two compounds of interest in this research, ketone bodies and β-Hydroxy β-Methylbutyrate (HMB) have been used for dealing with the side effects of various health conditions including muscle mass loss and insufficient food intake. Although these molecules have been used extensively as supplements, no supplement was found which combined the properties of both ketone bodies and HMB. This project was conceived to create a novel category of molecules that combine the properties of both ketone bodies and HMB that can be used as supplements for treating a wide range of health-related issues. Acetoacetate and isopentyldiol were used as the sources of ketone bodies and HMB, respectively. Six novel compounds were synthesized using transesterification of acetoacetate and isopentyldiol. Some of the developed reaction procedures were versatile as they could be performed under a variety of parameters such as solventless, catalyst-free, and mild conditions. Immobilized enzymes and chemicals were used to generate new compounds under greener parameters. The compounds that were isolated were characterized using GCMS, H NMR, and FTIR instrumentation. In summary, the goal of this research project was to design and synthesize novel ketone body analogs.
摘要:
Fatty acids are produced through transacylation. An organic nitrogen-containing compound is reacted with alkyl sultone to generate a white solid of a zwitterionic compound. After being purified and dried, the white solid is powdered to be reacted with a Bronsted strong acid for obtaining a clear viscous water-based acidic ionic liquid (IL) as a catalyst used used to effectively process transacylation between oil and acetic acid (HOAc) for fabricating fatty acid (FFA) and glycerol triacetate (GTA). Therein, unsaturated fatty acid is simultaneously processed through addition acetoxylation to obtain stabilized acetoxy fatty acid (AFFA). After, HOAc is recycled through vacuuming. Then, the product and the IL are stratified. The product at upper layer is taken out. The IL at lower layer can be recycled for processing transacylation and addition acetoxylation repeatedly. Therein, fatty acids including the stabilized AFFA are obtained from the product after taking out GTA through vacuum distillation.
摘要:
Supported olefin metathesis catalysts are disclosed, and more particularly, a supported catalyst complex comprising a catalyst composed of a Group 8 transition metal complex comprising a labile ligand and a non-labile ligand and a support, wherein the metal complex and the support are linked together by one or more linkers, in which one of the linkers connects the labile ligand of the complex to the support and the same or a different linker connects the non-labile ligand of the complex to the support. A method for preparing a supported catalyst complex is further disclosed. The invention further relates to the use of the supported olefin metathesis catalyst in performing metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.
摘要:
A leaving substituent-containing compound including a partial structure represented by the following General Formula (I): where a pair of X1 and X2 or a pair of Y1 and Y2 each represent a hydrogen atom; the other pair each represent a group selected from the group consisting of a halogen atom and a substituted or unsubstituted acyloxy group having one or more carbon atoms; a pair of the acyloxy groups represented by the pair of X1 and X2 or the pair of Y1 and Y2 may be identical or different, or may be bonded together to form a ring; R1 to R4 each represent a hydrogen atom or a substituent; and Q1 and Q2 each represent a hydrogen atom, a halogen atom or a monovalent organic group, and may be bonded together to form a ring.
摘要翻译:含有由以下通式(I)表示的部分结构的含有取代基的化合物:其中一对X1和X2或一对Y1和Y2各自表示氢原子; 另一对各自表示选自卤原子和具有一个或多个碳原子的取代或未取代的酰氧基的基团; 由一对X1和X2表示的一对酰氧基或一对Y1和Y2可以相同或不同,或者可以结合在一起形成环; R 1〜R 4各自表示氢原子或取代基; 并且Q1和Q2各自表示氢原子,卤素原子或一价有机基团,并且可以结合在一起形成环。
摘要:
A method for producing triacetin from one or more plants of genus Nicotiana is provided. The triacetin can be derived inter alia from Nicotiana species biomass or from seed. In certain embodiments, the triacetin is produced by condensation of glycerin, generated by hydrolysis of acylglycerol-containing starting material derived from tobacco biomass or seed, and acetic acid, also derived from tobacco biomass or seed. The invention also provides articles and compositions including tobacco articles and tobacco compositions that include triacetin produced from one or more plants of genus Nicotiana.
摘要:
The invention relates to compounds from the soft coral and the generation thereof. The invention also relates to the uses of the compounds from the soft coral in inhibiting inducible nitric oxide synthase and/or cyclooxygenase-2 and in treating the diseases associated with inducible nitric oxide synthase and/or cyclooxygenase-2.
摘要:
Disclosed are 1,3-Dioxoindene derivatives, pharmaceutically acceptable salts thereof or enantiomers, a preparation method thereof, and a pharmaceutical composition for the prevention or treatment of viral diseases, comprising the same as an active ingredient. The 1,3-Dioxoindene derivatives have excellent inhibitory activity against picornaviruses including coxsackie-, entero-, echo-, Polio-, and rhinoviruses, as well as exhibiting low cytotoxicity, so that they can be useful as an active ingredient of a pharmaceutical composition for the prevention or treatment of viral diseases including poliomyelitis, paralysis, acute hemorrhagic conjunctivitis, viral meningitis, hand-foot-and-mouth disease, vesicular disease, hepatitis A, myositis, myocarditis, pancreatitis, diabetes, epidemic myalgia, encephalitis, flu, herpangina, foot-and-mouth disease, asthma, chronic obstructive pulmonary disease, pneumonia, sinusitis or otitis media.
摘要:
Novel processes for preparing optically active cyclopentanones 1 which are useful for the preparation of benzindene Prostaglandins and novel cyclopentanones are provided. The invention also provides novel processes of preparing benzindene Prostaglandins and novel intermediates for benzindene Prostaglandins.