- High-value utilization method of sodium 2-mercaptoacetate in thionocarbamate production tail liquid
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The invention belongs to wastewater treatment, and particularly discloses a high-value utilization method of sodium 2-mercaptoacetate in thionocarbamate production tail liquid. According to the method, sodium 2-mercaptoacetate in the thionocarbamate production tail liquid is used as a raw material and reacts with thiocyanate and a halogenating reagent to obtain the S-carboxyethyl-N-alkanoyl dithiocarbamate. The method is simple to operate and high in efficiency, solves the problem that the sodium 2-mercaptoacetate in the thionocarbamate production tail liquid is difficult to recover, and can realize high-value utilization of the sodium 2-mercaptoacetate.
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Paragraph 0079-0080
(2021/08/11)
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- Pyrimido azacyclo compound and application thereof
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The invention discloses a pyrimido azacyclo compound represented by a general formula I, and a pharmaceutically acceptable salt thereof, and relates to the technical field of organic chemistry, wherein substituent groups X and Ar are defined in the specification. The invention also relates to application of the compound represented by the general formula I and the pharmaceutically acceptable saltthereof in medicines for treating diseases caused by abnormal high expression of URAT1, particularly in preparation of medicines for treating and/or preventing gout, wherein the general formula I is defined in the specification.
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Paragraph 0045; 0052-0053
(2020/07/13)
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- Method for utilizing byproduct 2-sodium thioglycollate in production process of thionocarbamate
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The invention belongs to wastewater treatment and in particular discloses a method for utilizing a byproduct 2-sodium thioglycollate in the production process of thionocarbamate. The method comprisesthe following steps: by taking a byproduct 2-sodium thioglycollate in the production process of thionocarbamate as a raw material, enabling the byproduct to react with a halogenation reagent so as toobtain alkyl thioether acetic acid; performing esterification on the alkyl thioether acetic acid with methanol so as to obtain alkyl thioether methyl acetate; and further enabling the alkyl thioethermethyl acetate to react with hydroxylamine hydrochloride, so as to obtain alkyl thioether ethyl hydroximic acid. By adopting the method, the problem that the byproduct 2-sodium thioglycollate in a process of thionocarbamate is hard to recycle can be solved, the utilization rate of the byproduct is increased, and the environment can be protected.
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Paragraph 0038
(2019/12/25)
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- Production method of high-grade sodium thioglycollate powder
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The invention provides a production method of high-grade sodium thioglycollate powder. The production method comprises the following steps of firstly, uniformly mixing chloroacetic acid and deionized water according to the mass ratio to obtain a chloroacetic acid solution, then adding sodium carbonate into the chloroacetic acid solution, and uniformly mixing to obtain a sodium chloroacetate solution; secondly, adding sodium thiosulfate into the sodium chloroacetate solution, uniformly mixing and then carrying out temperature-rise condensation to obtain a condensation compound; thirdly, adding sodium hydroxide into the condensation compound, uniformly mixing and then carrying out temperature-reduced mercaptoethylation to obtain a mercaptoethylation product; fourthly, carrying out vacuum drying treatment on the mercaptoethylation product to obtain the high-grade sodium thioglycollate powder. According to the production method provided by the invention, the problems about low grade of products, high transportation expenses, high packing expenses, easiness in oxidation and the like existing the prior art are solved; sodium thioglycollate produced by the production method provided by the invention is in a powder shape and does not generate three wastes; the grade of the product is over 35 percent; the high-grade sodium thioglycollate powder belongs to a green environment-friendly product.
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Paragraph 0023-0029
(2017/01/17)
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- COMPOSITION AND METHODS FOR THE TREATMENT OF MYELODYSPLASTIC SYNDROME AND ACUTE MYELOID LEUKEMIA
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Methods and compositions are provided for treating myelodysplastic syndrome and acute myeloid leukemia, wherein the composition comprises at least one compound according to Formula I: wherein R1 is selected from the group consisting of —NH2, —NH—CH2—CO2H, —NH—CH(CH3)—CO2H, and —NH—C(CH3)2—CO2H, or a pharmaceutically acceptable salt of such a compound; and a DNA methyltransferase inhibitor, or a pharmaceutically acceptable salt thereof.
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- ACTIVATED CYTOTOXIC COMPOUNDS FOR ATTACHMENT TO TARGETING MOLECULES FOR THE TREATMENT OF MAMMALIAN DISEASE CONDITIONS
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Activated cytotoxic compounds are described for attachment to targeting molecules for the treatment of a mammalian disease condition which comprise, an activator, a spacer linker, a linker (e.g., self-immolative), and a cytotoxic drug selected from the group consisting of AMINO-SUBSTITUTED (E)-2,6-DIALKOXYSTYRYL 4-SUBSTITUTED BENZYLSULFONES, AMINO-AND- HYDROXY SUBSTITUTED STYRYLSULFONANILIDES, and SUBSTITUTED PHENOXY- AND PHENYLTHIO-STYRYLSULFONE DERIVATIVES. Activated cytotoxic compound attached to a targeting molecule are described wherein the targeting molecule is selected from the group consisting essentially of an antibody, a receptor, a ligand, a cytokine, a hormone, and a signal transduction molecule. The invention is further directed to a method of treatment of disease conditions.
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Page/Page column 53
(2010/11/30)
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- COMPOSITION AND METHODS FOR THE TREATMENT OF MYELODYSPLASTIC SYNDROME AND ACUTE MYELOID LEUKEMIA
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Methods and compositions are provided for treating myelodysplastic syndrome and acute myeloid leukemia, wherein the composition comprises at least one compound according to Formula I: (I) wherein R1 is selected from the group consisting of -NH2, -NH-CH2-CO2H, -NH-CH(CH3)-CO2H, and -NH-C(CH3)2-CO2H, or a pharmaceutically acceptable salt of such a compound; and a DNA methyltransferase inhibitor, or a pharmaceutically acceptable salt thereof.
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Page/Page column 30
(2008/06/13)
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- Ambient stored blood plasma expanders
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A liquid plasma expander or resuscitation fluid composition for use in a subject in need thereof, comprising, consisting of, or consisting essentially of: (a) a keratin derivative (preferably alpha keratose, gamma keratose, or combinations thereof, and with basic alpha keratose preferred over acidic alpha keratose); and (b) an electrolyte solution, with the keratin derivative solubilized in the electrolyte solution to form a homogeneous liquid composition. Blood substitutes formed therefrom and methods of making and using the same are also described.
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Page/Page column 8
(2008/06/13)
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- 1,4-Oxathianones and 1,4-oxathiepanones
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The compounds of the formula STR1 in which R is C1 -C24 alkyl, C3 -C20 alkenyl, C5 -C6 cycloalkyl, unsubstituted or C1 -C4 alkyl-substituted phenyl or phenyl-C1 -C4 alkyl, n is 1 or 2, and X is S or O, are highly suitable as additives, in particular as antiwear and high-pressure additives, and as corrosion inhibitors in functional fluids, for example in lubricants, fuels, hydraulic fluids, metal-working fluids and drilling fluids.
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