APIs para pesquisa e impurezas

<p>Tacrolimus is a macrolide that is used as an immunosuppressive drug. It has been shown to bind to the FK-binding protein, which in turn inhibits calcineurin. This prevents the release of IL-2, TNF-α and other cytokines. The immunosuppressive effects of tacrolimus have been evaluated using analytical methods such as coefficients, affinity, and monitoring techniques such as immunoassays and agglutination. These techniques are used to evaluate the plasma concentration of tacrolimus. Tacrolimus also binds to proteins in the blood samples and can be detected by turbidimetric or electrochemiluminescence immunoassay reagents.</p>

<p>Bezafibrate is a drug product that is used in the treatment of hyperlipidemia. It is an impurity standard for bezafibrate 1-o-β-glucuronide, which can be used as an analytical standard for HPLC analysis. Bezafibrate 1-o-β-glucuronide can also be used to evaluate the metabolism of bezafibrate through animal studies.</p>

<p>Pirtenidine is a potent and selective kinase inhibitor that has been shown to inhibit the activity of cyclin-dependent kinases. It has demonstrated promising results in preclinical studies as an anticancer agent, inducing apoptosis in cancer cells. Pirtenidine is an analog of protein kinase inhibitors, which have been used to treat various types of tumors. It has been found to be effective against human cancer cell lines and has shown significant tumor growth inhibition in animal models. Pirtenidine has also been reported to be a potent urine inhibitor of Chinese hamster ovary cells, making it a promising candidate for the treatment of urinary tract cancers.</p>

<p>S(-)-BZM is a potent kinase inhibitor that has been shown to induce apoptosis in cancer cells. It is an analog of the natural product staurosporine and has been isolated from human urine. S(-)-BZM inhibits the activity of several kinases, including protein kinase C and cyclin-dependent kinases, which are involved in cell cycle regulation and tumor growth. This drug has been tested on various cancer cell lines, including leukemia, and has demonstrated significant antitumor activity. S(-)-BZM is a promising medicinal agent for the treatment of cancer and other diseases characterized by abnormal cell proliferation.</p>