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    Home > Pharmaceutical Intermediates > Heterocyclic Compound (Find 6679 items)

    Heterocyclic Compound

    OTAVA-BB 1207229

    (571188-59-5)
    4-(6-Aminopyridin-3-yl)piperazine-1-carboxylic acid tert-butyl ester is a pharmaceutical intermediate, mainly used for the synthesis of pabuxirib raw material medicine. 4-(6-Aminopyridin-3-yl)piperazine-1-carboxylic acid tert-butyl ester is an organic synthesis intermediate and pharmaceutical intermediate, mainly used as a laboratory research and development and chemical medicine synthesis process.

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    4-Dimethylaminopyridine

    (1122-58-3)
    1. A highly efficient catalyst for acylation reactions.
    2. 4-Dimethylaminopyridine is a versatile hypernucleophilic acylation catalyst, it is used to improve the yield, reduce the reaction time, improving relaxation process conditions. Widely used in perfumes, dyes, pigments, pesticides, pharmaceuticals and polymer compounds and other fields. Also used as a catalyst for the synthesis of polyurethane, a curing agent and a blowing catalyst.
    3. DMAP is a useful highly basic nucleophilic catalyst for a variety of reactions such as esterifications with anhydrides, the Baylis-Hillman reaction, hydrosilylations, tritylation, the Steglich rearrangement.
    4. A highly fluorescent adenosine analogue, which in a dimethoxytrityl, phosphoramidite protected form, can be site-specifically inserted into oligonucleotides through a 3?5?phosphodiester linkage using an automated DNA synthesizer

    3,4-Ethylenedioxythiophene

    (126213-50-1)
    Mainly used in the synthesis of conductive polymer PEDT, widely used in modern electronics industry. It is used as a reducing agent in synthetic gold nanoparticles; as the starting material for palladium-catalyzed arylation reactions; for synthesizing coupling polymers and co-polymers, and as a synthetic conductive polymer PEDT.

    7-Hydroxy Quinolinone

    (22246-18-0)
    An antitumor agent. Hydroxyindole analog inhibitor tyrosinase melanoma. This compound is also used in the preparation of aripiprazole (A771000).

    Kojicacid

    (501-30-4)
    (1) Kojic acid has a very wide range of applications in food production. In the past, kojic acid has been used in oils to prevent rancidity due to its antioxidant properties. In recent years, it has been reported in the literature that kojic acid has bactericidal and insecticidal effects. As a food preservative, preservative, and color preservative, it has obvious effects and can replace chemical Preservatives are widely used in the color protection of meat food processing, preservation of fruits and vegetables, sterilization and preservation of raw foods, and can also be used as a cut flower retaining agent to extend the preservation of flowers and shelf life. The addition of kojic acid in food will not affect its own taste, flavor and texture, but also hinder the conversion of nitrite into nitrosamines that are carcinogenic to the human body. This kind of hindering or inhibiting effect has no effect on cured meat products. The upgrade of the new generation is very important. In terms of agricultural production, kojic acid can be used as both a biological pesticide, an insecticide, and a biological fertilizer. Whether spraying or root application, it has a significant effect on increasing production and income of food and vegetables. (2) As raw materials for food flavoring agents maltol and ethyl maltol. (3) Kojic acid can be used as a raw material for the production of cephalosporin antibiotics. (4) In addition to its wide application in food processing, kojic acid also has good cosmetic effects for freckle removal and whitening. Kojic acid and its derivatives such as acetate have certain antibacterial properties, no one-time irritation and cumulative irritation to the skin, and can be used as a preservative in cosmetics and food. It can absorb ultraviolet light strongly, and can be used alone or in combination with various sunscreen products such as soap. It can treat and prevent the formation of skin spots such as liver spots, and the dosage is 1 to 2.5%. Helps maintain humidity and reduce skin wrinkles. Used in hair products to remove dandruff. (5) Kojic acid can be used as a raw material for flavoring and manufacturing larch and ethyl larch.

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    2-Amino-4,6-dimethoxypyrimidine

    (36315-01-2)
    2-Amino-4,6-dimethoxypyrimidine is a building block for various chemical synthesis. Attributes PIS available on request.This product is an important pesticide intermediate for the synthesis of sulfonylurea pesticides, such as bensulfuron-methyl, Nicosulfuron, ciprosulfuron, ethoxysulfuron, sulfasulfuron, acrimsulfuron, pyrimsulfuron, clopyrsulfuron, tetrazosulfuron, pyrimsulfuron (NC- 311) etc.
    Heterocyclic compounds are organic compounds that contain a heterocyclic structure in the molecule and are the largest number of organic compounds. In addition to carbon atoms, the atoms constituting the ring also contain at least one heteroatom. The most common heteroatoms are nitrogen atoms, sulfur atoms, and oxygen atoms.This organic compound can be divided into two categories: aliphatic heterocycles and aromatic heterocycles. Heterocyclic compounds are ubiquitous in the structure of drug molecules.
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