#amide

• Agamid — A lizard belonging to the Agamidae family, distributed throughout the warm regions of Africa, Asia, and Australia, characterized by acrodont teeth fused to the edge of the jawbones, a robust body, and a high capacity for adapting to arid environments. Many species possess the ability to change skin color based on temperature or emotional state, and structurally, unlike other lizards, they cannot autotomize (break off) their tails when endangered.
• Albon compound — A commercial or technical name attributed to a chemical compound of the sulfonamide class, used historically in veterinary medicine for its antibacterial properties; a light-colored, whitish or greyish mineral, reported in certain limestone geological structures.
• Amide — An organic compound functionally derived from a carboxylic acid where the hydroxyl group (-OH) has been replaced by an amino group (-NH2, -NHR, or -NR2), having the general structural formula R-CO-NR2. Amides are fundamental in nature and industry, forming the peptide bonds that link amino acids into proteins and synthetic polymers like nylon, characterized by high chemical stability due to the conjugation of electrons from the nitrogen atom with the carbonyl group.
• Amidase — An enzyme belonging to the hydrolase class that catalyzes the hydrolytic cleavage of a linear amide bond, converting an amide compound into a carboxylic acid and ammonia or a corresponding amine. This biocatalyst plays an essential structural role in nitrogen metabolism, cellular detoxification processes, and industrial biocatalysis used for the enantioselective synthesis of high-purity pharmaceutical compounds.
• Amidazine — An alternative pharmacological term or historical commercial name used to designate a medicinal compound from the class of chemotherapeutic or antitubercular agents, structurally closely related to pyrazinamide derivatives or hydrazides. This therapeutic agent acts by interfering with fatty acid synthesis in the bacterial cell wall, administered in complex clinical regimens to neutralize pathogens resistant to conventional antibiotics.
• Amide salt — An inorganic chemical compound derived from ammonia by replacing a hydrogen atom with a metal atom (usually an alkali or alkaline earth metal), containing the structural anion NH2-. Metallic amides, such as sodium amide (NaNH2), are recognized as extremely strong bases and severe nucleophilic reagents, widely used in industrial organic synthesis for deprotonation, alkylation, and the formation of new carbon-carbon bonds.
• Ammonolysis — A chemical cleavage reaction of a bond in an organic or inorganic compound under the action of ammonia, analogous to hydrolysis, resulting in the introduction of amino groups (-NH2) into the structure of the resulting molecule. This industrial process is widely used for synthesizing amines, amides, and other nitrogenous derivatives from alkyl halides, acids, or esters.
• Anilide — An organic chemical compound structurally derived from an acid (usually a carboxylic acid) and aniline, by replacing a hydrogen atom in the amino group with an acyl radical. These substances belong to the class of aromatic amides and are of high importance in the pharmaceutical industry, serving as a base for synthesizing well-known analgesics and antipyretics, as well as in manufacturing artificial dyes and plastic stabilizers.
• Anti-sulfonamide — A chemical substance or biological compound capable of blocking, neutralizing, or inhibiting the antibacterial therapeutic effect of sulfonamides. In a biochemical sense, it most often acts as a competitive antagonist (such as para-aminobenzoic acid), restoring normal folic acid synthesis in bacterial cells and thereby nullifying the drug's bacteriostatic action.