Pharmaceutical intermediates

Pharmaceutical intermediates

Definition and Characteristics:

Pharmaceutical intermediates are transitional products in the drug synthesis process and need to undergo further molecular changes or refinement to become active pharmaceutical ingredients. Its structure is different from that of the active pharmaceutical ingredient and it belongs to the intermediate compound in the synthetic pathway. It does not require a drug production license, but it must meet the FDA registration requirements. The quality control requirements are lower than those for active pharmaceutical ingredients, and there are no testing standards in the pharmacopoeia.

Classification:

According to the application field, pharmaceutical intermediates can be divided into antibiotic drug intermediates, such as penicillin and cephalosporin series. Antipyretic and analgesic medicinal intermediates, such as the intermediates of acetaminophen; Pharmaceutical intermediates for the cardiovascular system, such as those for statins; Pharmaceutical intermediates for anti-cancer purposes, such as intermediates for platinum-based anti-cancer drugs, etc. According to their chemical structure, they can be further classified into imidazoles, furans, phenols, aromatics, etc.

Position in the pharmaceutical industry chain:

Pharmaceutical intermediates are located in the midstream of the pharmaceutical industry chain. The upstream is the basic chemical raw material manufacturing industry, which provides the raw materials needed for the synthesis of intermediates. The downstream is the manufacturing industry of chemical raw materials and preparations, which further processes intermediates into finished drugs.

Importance:

Pharmaceutical intermediates are the key to ensuring the quality of drugs. Their purity and structure directly affect the quality and efficacy of the final product. At the same time, it is also the foundation of drug research and development innovation. The development of new drugs often begins with the screening of effective intermediates. In addition, the development of the pharmaceutical intermediate industry has also promoted the extension and improvement of the pharmaceutical industrial chain.