5-tert-butyl 4-ethyl 3-methyl-6,7-dihydro-3H-imidazo[4,5-c]pyridine-4,5(4H)-dicarboxylate

5-Pentyl-4-ethyl-3-methyl-6,7-dihydro-3H-indolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride, this compound has important uses in the field of organic synthesis and medicinal chemistry.
In organic synthesis, it can be used as a key intermediate to construct complex heterocyclic compounds. Because of its unique cyclic structure and functional groups, it can interact with other organic molecules through various chemical reactions, such as nucleophilic substitution, electrophilic substitution, cyclization reaction, etc., and then build new compounds with specific biological activities or physicochemical properties.
In the field of medicinal chemistry, this compound shows potential medicinal value. Its special chemical structure may be able to bind to specific targets in organisms, such as enzymes, receptors, etc., to regulate physiological and biochemical processes in organisms. For example, it may be used as a potential anti-cancer drug, which inhibits the proliferation, migration or induces apoptosis of tumor cells by interacting with specific targets in tumor cells; or as a neurological drug, which acts on neurotransmitter receptors and regulates the transmission of neural signals for the treatment of neurological diseases such as Alzheimer's disease and Parkinson's disease. However, to develop it into a practical drug, a large number of in-depth pharmacological experiments, toxicological experiments, and clinical trials are required to evaluate its effectiveness and safety.

To prepare 5-pentyl-4-ethyl-3-methyl-6,7-dihydro-3H-indolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride, there are various methods.
First, you can start from the basic hydrocarbons. First, in a suitable reaction, methyl, ethyl, pentyl and other hydrocarbons are introduced into a specific aromatic compound in sequence to construct the desired carbon skeleton. This process requires careful selection of reaction conditions and reagents, such as the coupling reaction of halogenated hydrocarbons and metal reagents, which can precisely introduce hydrocarbons.
Furthermore, regarding the formation of dihydro and indolopyridine structures. Nitrogen-containing heterocyclic compounds and reagents with alkenyl structures can be constructed by cyclization. Or by ingenious reaction paths such as intramolecular cyclization rearrangement, the unique structure of indolopyridine can be shaped.
As for the synthesis of the dicarboxylic acid anhydride part, at an appropriate stage, for compounds with the above structure, suitable carboxylic acid derivatives, such as acid anhydrides, acyl chlorides, etc. can be introduced into carboxylic groups through acylation reaction, and then cyclized through dehydration to form dicarboxylic acid anhydride structures. In this step, the choice of dehydrating agent and the control of reaction temperature are critical.
Or you can try the strategy of reverse synthesis analysis, disassembling the target product into several simple intermediates, synthesizing each intermediate separately, and then cleverly splicing to aggregate into the target product. In this way, complexity can be simplified, and the efficiency and success rate of synthesis can be improved. The whole process of synthesis requires careful regulation of the reaction conditions, and accurate analysis and identification of the products at each step can obtain a pure target product 5-pentyl-4-ethyl-3-methyl-6,7-dihydro-3H-indolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride.

4,5-Dihydro-3H-pyrazolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride, which is derived from 5-benzyl-4-ethyl-3-methyl-6,7-dihydropyrazolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride. Its physical and chemical properties are as follows:
Looking at its shape, it is a white to pale yellow crystalline powder under normal conditions, with a fine texture. Its melting point is quite critical, about a certain temperature range, this temperature can cause it to gradually melt from a solid state to a liquid state, reflecting the strength of intermolecular forces.
In terms of solubility, in organic solvents, such as dichloromethane, N, N-dimethylformamide, etc., it has certain solubility characteristics. In water, because its structure contains polar and non-polar parts, the degree of solubility is limited, only slightly soluble or insoluble, which is related to the interaction between molecular polarity and water molecules.
Stability is also an important property. It can remain relatively stable at room temperature, dry and protected from light. In case of strong acids and bases, its anhydride structure is vulnerable to attack, and reactions such as hydrolysis occur, resulting in structural changes. In case of high temperature and strong oxidants, it may also trigger chemical reactions and damage its stability.
Its spectral properties are unique. In infrared spectroscopy, the carbonyl stretch vibration peak of acid anhydride presents a characteristic absorption peak in a specific wavenumber range, which can be used as an important basis for structure identification. In hydrogen nuclear magnetic resonance spectroscopy, hydrogen atoms in different chemical environments peak at the corresponding chemical shifts, and the position of the peak, the split situation and the integral area can analyze the environment and number of hydrogen atoms in the molecule, which can help to accurately determine the molecular structure.
The physicochemical properties of this substance are of great significance for its application in organic synthesis, drug development and other fields. According to its properties, researchers can rationally design the reaction path and optimize the application plan.

I think what you said seems to involve an inquiry for a compound. However, the "5-pentyl-4-ethyl-3-methyl-6,7-dihydro-3H-indolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride" described here is very complex, and the structure must be very complicated.
It is not easy to find its price in the market. These compounds are mostly used in professional chemical research, pharmaceutical research and development and other profound fields. The preparation process often requires exquisite craftsmanship and skilled technology, and the raw materials used may be scarce and expensive.
If you are in a normal market, it is hard to see its trace. To know its price, you need to visit a specialized chemical reagent supplier. However, not all such merchants have this product. Even if there is, its price may vary greatly due to purity, batch and many other factors.
For those with high purity and small batches, the price must be high. Because the preparation of high-purity products requires a lot of manpower, material resources and fine processes. For those with larger batches, although the unit price may be reduced, the overall cost is not a decimal.
Or this compound is a customized product, made according to the specific needs of customers, and its price needs to be discussed according to specific requirements, which is difficult to generalize. Therefore, in order to determine its price in the market, it is advisable to consult the industry's specialized suppliers and state the required quantity, purity, and other details in order to obtain a more accurate quotation.

#5-Furyl-4-ethyl-3-methyl-6,7-dihydro-3H-indolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride related research progress
##Synthetic method progress
Today, many new paths have been discovered for the synthesis of 5-furyl-4-ethyl-3-methyl-6,7-dihydro-3H-indolo [4,5-c] pyridine-4,5 (4H) -dicarboxylic anhydride. In the past, traditional synthesis methods required many lengthy steps and harsh conditions, resulting in low yield. Now, some researchers have taken a different approach, leveraging the power of new catalysts to make the reaction conditions milder and the yield has also increased. For example, those who use metal-organic framework materials as catalysts can efficiently convert key intermediates at milder temperatures and pressures, greatly shorten the reaction time, and improve the purity of the product.
##Properties Research Expansion
The investigation of its physical and chemical properties has also made new gains. After in-depth spectral analysis, its molecular structure and electron cloud distribution were clarified, which is of great help to understand its optical and electrical properties. Studies have found that the compound can exhibit unique fluorescence properties under specific wavelengths of light, or can be used in the field of fluorescent probes. Furthermore, the study of its thermal stability revealed that the substance is structurally stable in a certain high temperature range, providing theoretical support for its applications in high temperature environments.
##application field exploration
At the application level, great progress has been made. In the field of medicinal chemistry, due to its unique structure, it may have potential biological activity. Some studies have shown that it has the effect of inhibiting the proliferation of specific cancer cell lines, and it is expected to be developed as a new anti-cancer drug. In materials science, due to its good thermal stability and fluorescence properties, it can be used as a high-performance luminescent material for the manufacture of organic Light Emitting Diode (OLED) to improve the display effect. In addition, in the field of sensors, with their fluorescence response to specific substances, high-sensitivity chemical sensors can be prepared to detect environmental contaminants or biomarkers.